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Finding the Fourth Proportional to 658,144.56, 987,216.78 and 159,508.56

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Solution

The fourth proportional to 658,144.56, 987,216.78 and 159,508.56 is: 239,262.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,144.56 : 987,216.78 = 159,508.56 : x
  2. Step 2: Convert to fraction form
    658,144.56/987,216.78 = 159,508.56/x
  3. Step 3: Cross multiply
    658,144.56x = 987,216.78 × 159,508.56
  4. Step 4: Simplify right side
    658,144.56x = 157,469,526,985.64
  5. Step 5: Solve for x
    x = 157,469,526,985.64/658,144.56
  6. Step 6: Final answer
    x = 239,262.83

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Similar ratio
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1.5x scale

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.