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Finding the Fourth Proportional to 392,680.62, 541,947.54 and 231,550.02

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Solution

The fourth proportional to 392,680.62, 541,947.54 and 231,550.02 is: 319,567.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,680.62 : 541,947.54 = 231,550.02 : x
  2. Step 2: Convert to fraction form
    392,680.62/541,947.54 = 231,550.02/x
  3. Step 3: Cross multiply
    392,680.62x = 541,947.54 × 231,550.02
  4. Step 4: Simplify right side
    392,680.62x = 125,487,963,725.95
  5. Step 5: Solve for x
    x = 125,487,963,725.95/392,680.62
  6. Step 6: Final answer
    x = 319,567.50

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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.