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Finding the Fourth Proportional to 239,782.71, 330,900.17 and 132,352.78

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Solution

The fourth proportional to 239,782.71, 330,900.17 and 132,352.78 is: 182,646.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,782.71 : 330,900.17 = 132,352.78 : x
  2. Step 2: Convert to fraction form
    239,782.71/330,900.17 = 132,352.78/x
  3. Step 3: Cross multiply
    239,782.71x = 330,900.17 × 132,352.78
  4. Step 4: Simplify right side
    239,782.71x = 43,795,557,401.97
  5. Step 5: Solve for x
    x = 43,795,557,401.97/239,782.71
  6. Step 6: Final answer
    x = 182,646.85

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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.