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Finding the Fourth Proportional to 658,156.26, 987,234.42 and 159,520.26

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Solution

The fourth proportional to 658,156.26, 987,234.42 and 159,520.26 is: 239,280.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,156.26 : 987,234.42 = 159,520.26 : x
  2. Step 2: Convert to fraction form
    658,156.26/987,234.42 = 159,520.26/x
  3. Step 3: Cross multiply
    658,156.26x = 987,234.42 × 159,520.26
  4. Step 4: Simplify right side
    658,156.26x = 157,483,891,359.35
  5. Step 5: Solve for x
    x = 157,483,891,359.35/658,156.26
  6. Step 6: Final answer
    x = 239,280.40

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Double scale
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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.