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Finding the Fourth Proportional to 418,711.92, 577,805.85 and 227,725.26

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Solution

The fourth proportional to 418,711.92, 577,805.85 and 227,725.26 is: 314,251.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,711.92 : 577,805.85 = 227,725.26 : x
  2. Step 2: Convert to fraction form
    418,711.92/577,805.85 = 227,725.26/x
  3. Step 3: Cross multiply
    418,711.92x = 577,805.85 × 227,725.26
  4. Step 4: Simplify right side
    418,711.92x = 131,580,987,420.77
  5. Step 5: Solve for x
    x = 131,580,987,420.77/418,711.92
  6. Step 6: Final answer
    x = 314,251.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.