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Finding the Fourth Proportional to 239,813.13, 330,944.45 and 132,380.85

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Solution

The fourth proportional to 239,813.13, 330,944.45 and 132,380.85 is: 182,686.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,813.13 : 330,944.45 = 132,380.85 : x
  2. Step 2: Convert to fraction form
    239,813.13/330,944.45 = 132,380.85/x
  3. Step 3: Cross multiply
    239,813.13x = 330,944.45 × 132,380.85
  4. Step 4: Simplify right side
    239,813.13x = 43,810,707,593.78
  5. Step 5: Solve for x
    x = 43,810,707,593.78/239,813.13
  6. Step 6: Final answer
    x = 182,686.86

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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.