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Finding the Fourth Proportional to 392,504.97, 541,727.55 and 231,350.61

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Solution

The fourth proportional to 392,504.97, 541,727.55 and 231,350.61 is: 319,305.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,504.97 : 541,727.55 = 231,350.61 : x
  2. Step 2: Convert to fraction form
    392,504.97/541,727.55 = 231,350.61/x
  3. Step 3: Cross multiply
    392,504.97x = 541,727.55 × 231,350.61
  4. Step 4: Simplify right side
    392,504.97x = 125,328,999,146.31
  5. Step 5: Solve for x
    x = 125,328,999,146.31/392,504.97
  6. Step 6: Final answer
    x = 319,305.51

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1.5x scale

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.