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Finding the Fourth Proportional to 331,572.70, 496,775.85 and 272,086.30

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Solution

The fourth proportional to 331,572.70, 496,775.85 and 272,086.30 is: 407,650.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,572.70 : 496,775.85 = 272,086.30 : x
  2. Step 2: Convert to fraction form
    331,572.70/496,775.85 = 272,086.30/x
  3. Step 3: Cross multiply
    331,572.70x = 496,775.85 × 272,086.30
  4. Step 4: Simplify right side
    331,572.70x = 135,165,902,955.86
  5. Step 5: Solve for x
    x = 135,165,902,955.86/331,572.70
  6. Step 6: Final answer
    x = 407,650.88

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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.