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Finding the Fourth Proportional to 658,327.50, 987,491.66 and 159,691.50

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Solution

The fourth proportional to 658,327.50, 987,491.66 and 159,691.50 is: 239,537.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,327.50 : 987,491.66 = 159,691.50 : x
  2. Step 2: Convert to fraction form
    658,327.50/987,491.66 = 159,691.50/x
  3. Step 3: Cross multiply
    658,327.50x = 987,491.66 × 159,691.50
  4. Step 4: Simplify right side
    658,327.50x = 157,694,023,624.43
  5. Step 5: Solve for x
    x = 157,694,023,624.43/658,327.50
  6. Step 6: Final answer
    x = 239,537.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.