Home / 261,201.39-391,277.08-136,279.95

Finding the Fourth Proportional to 261,201.39, 391,277.08 and 136,279.95

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Solution

The fourth proportional to 261,201.39, 391,277.08 and 136,279.95 is: 204,146.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,201.39 : 391,277.08 = 136,279.95 : x
  2. Step 2: Convert to fraction form
    261,201.39/391,277.08 = 136,279.95/x
  3. Step 3: Cross multiply
    261,201.39x = 391,277.08 × 136,279.95
  4. Step 4: Simplify right side
    261,201.39x = 53,323,220,898.55
  5. Step 5: Solve for x
    x = 53,323,220,898.55/261,201.39
  6. Step 6: Final answer
    x = 204,146.01

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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.