Home / 398,819.13-598,099.29-132,508.14

Finding the Fourth Proportional to 398,819.13, 598,099.29 and 132,508.14

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Solution

The fourth proportional to 398,819.13, 598,099.29 and 132,508.14 is: 198,719.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,819.13 : 598,099.29 = 132,508.14 : x
  2. Step 2: Convert to fraction form
    398,819.13/598,099.29 = 132,508.14/x
  3. Step 3: Cross multiply
    398,819.13x = 598,099.29 × 132,508.14
  4. Step 4: Simplify right side
    398,819.13x = 79,253,024,453.22
  5. Step 5: Solve for x
    x = 79,253,024,453.22/398,819.13
  6. Step 6: Final answer
    x = 198,719.22

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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.