In my application, the fonts are automatically resized to stay proportional with the window. I am trying to describe it with this sentence:
Font sizes are dynamically calculated in order to maintain a given ratio to the size of the window
Is that correct? Especially the part "ratio to", I am not sure about that at all.
I would use "with".
Font sizes are dynamically calculated in order to maintain a given ratio with the size of the window.
Sample usage of "with" from Professional Paper -United States Geological Survey
Consequently the more femic minerals present, the less salic and smaller the alkalies necessary to maintain a given ratio with diminished salic lime.
Normally, when you use "to" with ratios, it is used to denote division of two quantities(simply put). Like:
Qty3 is defined as the ratio of Qty1 to Qty2
You can talk about the ratio of A to B, for example
The ratio of eggs to sugar is too high in this cake batter!
However, the sentence you gave seems grammatically incorrect to me — I think the ratio __ to construct requires an 'of' in between (i.e. ratio of __ to __). In this case,
Font sizes are dynamically calculated in order to maintain a given ratio with the size of the window.
might be better.
One solution is to combine two sentences from the original post:
Font sizes are dynamically calculated in order to stay proportional to the size of the window.
Optionally, you could replace "stay" with "be" or "remain".
Optionally, you could delete "in order".
I think I would say "maintain a given ratio between the size of the windows".
Given the comments below and revisiting the thread, I now think that what the question initially had is actually correct.
"Font sizes are dynamically calculated in order to maintain a given ratio to the size of the window"
meaning a given ratio of the font size to the size of the window.
