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Finding the Fourth Proportional to 658,144.38, 987,216.57 and 159,508.38

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Solution

The fourth proportional to 658,144.38, 987,216.57 and 159,508.38 is: 239,262.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,144.38 : 987,216.57 = 159,508.38 : x
  2. Step 2: Convert to fraction form
    658,144.38/987,216.57 = 159,508.38/x
  3. Step 3: Cross multiply
    658,144.38x = 987,216.57 × 159,508.38
  4. Step 4: Simplify right side
    658,144.38x = 157,469,310,056.23
  5. Step 5: Solve for x
    x = 157,469,310,056.23/658,144.38
  6. Step 6: Final answer
    x = 239,262.56

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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.