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Finding the Fourth Proportional to 239,892.88, 331,057.34 and 132,469.76

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Solution

The fourth proportional to 239,892.88, 331,057.34 and 132,469.76 is: 182,811.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,892.88 : 331,057.34 = 132,469.76 : x
  2. Step 2: Convert to fraction form
    239,892.88/331,057.34 = 132,469.76/x
  3. Step 3: Cross multiply
    239,892.88x = 331,057.34 × 132,469.76
  4. Step 4: Simplify right side
    239,892.88x = 43,855,086,376.04
  5. Step 5: Solve for x
    x = 43,855,086,376.04/239,892.88
  6. Step 6: Final answer
    x = 182,811.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.