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Finding the Fourth Proportional to 408,876.71, 564,249.78 and 227,584.73

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Solution

The fourth proportional to 408,876.71, 564,249.78 and 227,584.73 is: 314,066.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,876.71 : 564,249.78 = 227,584.73 : x
  2. Step 2: Convert to fraction form
    408,876.71/564,249.78 = 227,584.73/x
  3. Step 3: Cross multiply
    408,876.71x = 564,249.78 × 227,584.73
  4. Step 4: Simplify right side
    408,876.71x = 128,414,635,244.48
  5. Step 5: Solve for x
    x = 128,414,635,244.48/408,876.71
  6. Step 6: Final answer
    x = 314,066.89

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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.