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Finding the Fourth Proportional to 239,681.71, 330,747.88 and 132,230.71

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Solution

The fourth proportional to 239,681.71, 330,747.88 and 132,230.71 is: 182,471.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,681.71 : 330,747.88 = 132,230.71 : x
  2. Step 2: Convert to fraction form
    239,681.71/330,747.88 = 132,230.71/x
  3. Step 3: Cross multiply
    239,681.71x = 330,747.88 × 132,230.71
  4. Step 4: Simplify right side
    239,681.71x = 43,735,025,019.08
  5. Step 5: Solve for x
    x = 43,735,025,019.08/239,681.71
  6. Step 6: Final answer
    x = 182,471.27

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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.