Home / 261,134.52-391,701.78-172,367.26

Finding the Fourth Proportional to 261,134.52, 391,701.78 and 172,367.26

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Solution

The fourth proportional to 261,134.52, 391,701.78 and 172,367.26 is: 258,550.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,134.52 : 391,701.78 = 172,367.26 : x
  2. Step 2: Convert to fraction form
    261,134.52/391,701.78 = 172,367.26/x
  3. Step 3: Cross multiply
    261,134.52x = 391,701.78 × 172,367.26
  4. Step 4: Simplify right side
    261,134.52x = 67,516,561,576.47
  5. Step 5: Solve for x
    x = 67,516,561,576.47/261,134.52
  6. Step 6: Final answer
    x = 258,550.89

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1.5x scale

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.