Home / 331,712.20-497,568.30-82,394.20

Finding the Fourth Proportional to 331,712.20, 497,568.30 and 82,394.20

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Solution

The fourth proportional to 331,712.20, 497,568.30 and 82,394.20 is: 123,591.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,712.20 : 497,568.30 = 82,394.20 : x
  2. Step 2: Convert to fraction form
    331,712.20/497,568.30 = 82,394.20/x
  3. Step 3: Cross multiply
    331,712.20x = 497,568.30 × 82,394.20
  4. Step 4: Simplify right side
    331,712.20x = 40,996,742,023.86
  5. Step 5: Solve for x
    x = 40,996,742,023.86/331,712.20
  6. Step 6: Final answer
    x = 123,591.30

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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.