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Finding the Fourth Proportional to 239,641.76, 330,706.79 and 132,211.79

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Solution

The fourth proportional to 239,641.76, 330,706.79 and 132,211.79 is: 182,452.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,641.76 : 330,706.79 = 132,211.79 : x
  2. Step 2: Convert to fraction form
    239,641.76/330,706.79 = 132,211.79/x
  3. Step 3: Cross multiply
    239,641.76x = 330,706.79 × 132,211.79
  4. Step 4: Simplify right side
    239,641.76x = 43,723,336,010.00
  5. Step 5: Solve for x
    x = 43,723,336,010.00/239,641.76
  6. Step 6: Final answer
    x = 182,452.91

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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.