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Finding the Fourth Proportional to 499,489.90, 749,234.85 and 162,562.30

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Solution

The fourth proportional to 499,489.90, 749,234.85 and 162,562.30 is: 243,843.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,489.90 : 749,234.85 = 162,562.30 : x
  2. Step 2: Convert to fraction form
    499,489.90/749,234.85 = 162,562.30/x
  3. Step 3: Cross multiply
    499,489.90x = 749,234.85 × 162,562.30
  4. Step 4: Simplify right side
    499,489.90x = 121,797,340,456.16
  5. Step 5: Solve for x
    x = 121,797,340,456.16/499,489.90
  6. Step 6: Final answer
    x = 243,843.45

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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.