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Finding the Fourth Proportional to 239,630.77, 330,691.58 and 132,200.78

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Solution

The fourth proportional to 239,630.77, 330,691.58 and 132,200.78 is: 182,437.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,630.77 : 330,691.58 = 132,200.78 : x
  2. Step 2: Convert to fraction form
    239,630.77/330,691.58 = 132,200.78/x
  3. Step 3: Cross multiply
    239,630.77x = 330,691.58 × 132,200.78
  4. Step 4: Simplify right side
    239,630.77x = 43,717,682,996.72
  5. Step 5: Solve for x
    x = 43,717,682,996.72/239,630.77
  6. Step 6: Final answer
    x = 182,437.68

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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.