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Finding the Fourth Proportional to 239,828, 330,967.92 and 132,397.76

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Solution

The fourth proportional to 239,828, 330,967.92 and 132,397.76 is: 182,711.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,828 : 330,967.92 = 132,397.76 : x
  2. Step 2: Convert to fraction form
    239,828/330,967.92 = 132,397.76/x
  3. Step 3: Cross multiply
    239,828x = 330,967.92 × 132,397.76
  4. Step 4: Simplify right side
    239,828x = 43,819,411,239.86
  5. Step 5: Solve for x
    x = 43,819,411,239.86/239,828
  6. Step 6: Final answer
    x = 182,711.82

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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.