Finding the Third Proportional to 66,211.88 and 135,909.38
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Solution
The third proportional to 66,211.88 and 135,909.38 is: 278,973.50
Step by Step Solution
- Step 1: Write the proportion equation
66,211.88 : 135,909.38 = 135,909.38 : x - Step 2: Convert to fraction form
66,211.88/135,909.38 = 135,909.38/x - Step 3: Cross multiply
66,211.88x = 135,909.38 × 135,909.38 - Step 4: Simplify right side
66,211.88x = 18,471,358,212.89 - Step 5: Solve for x
x = 18,471,358,212.89/66,211.88 - Step 6: Final answer
x = 278,973.50
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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.