That is, if a:b = c:d, then a,b,c and d are said to be in proportion.
Proportion a:b = c:d is also denoted by a/b = c/d or a:b :: c:d and is read as
Example: Distance travelled in 4 hours is 200 miles, and distance travelled in 7 hours is 350 miles.
Directions: Express the given terms in the form of proportion as shown in the above example. Also write at least ten examples of your own.