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Finding the Fourth Proportional to 239,489.76, 330,488.64 and 132,059.76

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Solution

The fourth proportional to 239,489.76, 330,488.64 and 132,059.76 is: 182,238.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,489.76 : 330,488.64 = 132,059.76 : x
  2. Step 2: Convert to fraction form
    239,489.76/330,488.64 = 132,059.76/x
  3. Step 3: Cross multiply
    239,489.76x = 330,488.64 × 132,059.76
  4. Step 4: Simplify right side
    239,489.76x = 43,644,250,481.13
  5. Step 5: Solve for x
    x = 43,644,250,481.13/239,489.76
  6. Step 6: Final answer
    x = 182,238.48

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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.