Finding the Third Proportional to 66,207 and 135,902.50
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Solution
The third proportional to 66,207 and 135,902.50 is: 278,965.81
Step by Step Solution
- Step 1: Write the proportion equation
66,207 : 135,902.50 = 135,902.50 : x - Step 2: Convert to fraction form
66,207/135,902.50 = 135,902.50/x - Step 3: Cross multiply
66,207x = 135,902.50 × 135,902.50 - Step 4: Simplify right side
66,207x = 18,469,489,506.25 - Step 5: Solve for x
x = 18,469,489,506.25/66,207 - Step 6: Final answer
x = 278,965.81
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Why These Related Problems?
These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.