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Finding the Third Proportional to 275,217 and 387,565.13

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Solution

The third proportional to 275,217 and 387,565.13 is: 545,775.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,217 : 387,565.13 = 387,565.13 : x
  2. Step 2: Convert to fraction form
    275,217/387,565.13 = 387,565.13/x
  3. Step 3: Cross multiply
    275,217x = 387,565.13 × 387,565.13
  4. Step 4: Simplify right side
    275,217x = 150,206,726,116.27
  5. Step 5: Solve for x
    x = 150,206,726,116.27/275,217
  6. Step 6: Final answer
    x = 545,775.61

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.