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Finding the Fourth Proportional to 239,711.31, 330,808.59 and 132,288.30

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Solution

The fourth proportional to 239,711.31, 330,808.59 and 132,288.30 is: 182,561.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,711.31 : 330,808.59 = 132,288.30 : x
  2. Step 2: Convert to fraction form
    239,711.31/330,808.59 = 132,288.30/x
  3. Step 3: Cross multiply
    239,711.31x = 330,808.59 × 132,288.30
  4. Step 4: Simplify right side
    239,711.31x = 43,762,105,996.50
  5. Step 5: Solve for x
    x = 43,762,105,996.50/239,711.31
  6. Step 6: Final answer
    x = 182,561.71

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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.