Rate - Compares two quantities measured in different units.
Example - 72 beats per minute or 75 beats/min is a rate.
Ratio - Part to Part Ratio compares different parts of the group to each other.
Example - A's to B's which is 3 to 4
Proportional Reasoning - A relation ship the says that two ratios or two rates are equal.
Example - How much will 12 erasers cost if 3 erasers cost 75 cents?
So 12 eraser cost 300 cents or $ 3.00.
Sadly, Neither me, Richard , or Tyler could find the video on YouTube.
So here's the link
Now here's the fun part :P, a video of me and Tyler's horrible acting.