In mathematics, when we say that two ratios form a proportion, we mean that the two ratios are equal.
Ex: Ratios and Proportions - Proportions - In Depth. A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. The following proportion is read as "twenty is to twenty-five as four is to five."
A proportion is two ratios which have been set equal to each other; a proportion is an equation that can be solved. When I say that a proportion is two ratios that are equal to each other, I mean this in the sense of two fractions being equal to each other. For instance, 105 equals 21 .
Add all the beads together and put it over the number of blue beads. so since there are 150 beads, the denominator is 150. and the amount of blue beads is 50 so that's the numerator. 50/150 now simplify, divide the numerator and denominator by 50 that equals 1/3 so the probability of getting a blue bead is 1/3 <span />
