Home / 261,228-391,514.04-141,280.17

Finding the Fourth Proportional to 261,228, 391,514.04 and 141,280.17

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Solution

The fourth proportional to 261,228, 391,514.04 and 141,280.17 is: 211,742.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,228 : 391,514.04 = 141,280.17 : x
  2. Step 2: Convert to fraction form
    261,228/391,514.04 = 141,280.17/x
  3. Step 3: Cross multiply
    261,228x = 391,514.04 × 141,280.17
  4. Step 4: Simplify right side
    261,228x = 55,313,170,128.59
  5. Step 5: Solve for x
    x = 55,313,170,128.59/261,228
  6. Step 6: Final answer
    x = 211,742.88

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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.