°At a constant ratio (to). Two
magnitudes (numbers) are said to be proportional if the second varies in a direct relation
arithmetically to the first.
"The stopping distance is
proportional to the square of the speed of the vehicle. — at physicsclassroom.com."
"...how much of the Bush administration's immediate post-9/11 emphasis on Iraq was appropriate and
proportional to the overall picture of terrorism — '''' retrieved 24 Jan 2005."