Home / 261,134.52-391,701.78-172,367.27

Finding the Fourth Proportional to 261,134.52, 391,701.78 and 172,367.27

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Solution

The fourth proportional to 261,134.52, 391,701.78 and 172,367.27 is: 258,550.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,134.52 : 391,701.78 = 172,367.27 : x
  2. Step 2: Convert to fraction form
    261,134.52/391,701.78 = 172,367.27/x
  3. Step 3: Cross multiply
    261,134.52x = 391,701.78 × 172,367.27
  4. Step 4: Simplify right side
    261,134.52x = 67,516,565,983.11
  5. Step 5: Solve for x
    x = 67,516,565,983.11/261,134.52
  6. Step 6: Final answer
    x = 258,550.91

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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.