1. Using the five numbers of 2 6 4 8 3 to set up a proportional formula, what can you set up? 2. What's the proportion of 171?

1. 2 / 4 = 3 / 6 = 4 / 8 2 / 3 = 4 / 6 3 / 4 = 6 / 8
2. 171 = 1 * 171 = 3 * 57 = 9 * 19 proportion formula: 3 / 9 = 19 / 57

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