Home / 261,350.28-391,714.38-150,309

Finding the Fourth Proportional to 261,350.28, 391,714.38 and 150,309

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Solution

The fourth proportional to 261,350.28, 391,714.38 and 150,309 is: 225,284.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,350.28 : 391,714.38 = 150,309 : x
  2. Step 2: Convert to fraction form
    261,350.28/391,714.38 = 150,309/x
  3. Step 3: Cross multiply
    261,350.28x = 391,714.38 × 150,309
  4. Step 4: Simplify right side
    261,350.28x = 58,878,196,743.42
  5. Step 5: Solve for x
    x = 58,878,196,743.42/261,350.28
  6. Step 6: Final answer
    x = 225,284.61

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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.