Home / 261,827.91-392,734.02-72,299.88

Finding the Fourth Proportional to 261,827.91, 392,734.02 and 72,299.88

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Solution

The fourth proportional to 261,827.91, 392,734.02 and 72,299.88 is: 108,447.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,827.91 : 392,734.02 = 72,299.88 : x
  2. Step 2: Convert to fraction form
    261,827.91/392,734.02 = 72,299.88/x
  3. Step 3: Cross multiply
    261,827.91x = 392,734.02 × 72,299.88
  4. Step 4: Simplify right side
    261,827.91x = 28,394,622,517.92
  5. Step 5: Solve for x
    x = 28,394,622,517.92/261,827.91
  6. Step 6: Final answer
    x = 108,447.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.