Finding the Third Proportional to 212,068.13 and 278,731.13
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Solution
The third proportional to 212,068.13 and 278,731.13 is: 366,349.45
Step by Step Solution
- Step 1: Write the proportion equation
212,068.13 : 278,731.13 = 278,731.13 : x - Step 2: Convert to fraction form
212,068.13/278,731.13 = 278,731.13/x - Step 3: Cross multiply
212,068.13x = 278,731.13 × 278,731.13 - Step 4: Simplify right side
212,068.13x = 77,691,040,043.77 - Step 5: Solve for x
x = 77,691,040,043.77/212,068.13 - Step 6: Final answer
x = 366,349.45
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Why These Related Problems?
These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.