Home / 242,409.12-363,630.24-82,419.92

Finding the Fourth Proportional to 242,409.12, 363,630.24 and 82,419.92

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Solution

The fourth proportional to 242,409.12, 363,630.24 and 82,419.92 is: 123,635.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,409.12 : 363,630.24 = 82,419.92 : x
  2. Step 2: Convert to fraction form
    242,409.12/363,630.24 = 82,419.92/x
  3. Step 3: Cross multiply
    242,409.12x = 363,630.24 × 82,419.92
  4. Step 4: Simplify right side
    242,409.12x = 29,970,375,290.38
  5. Step 5: Solve for x
    x = 29,970,375,290.38/242,409.12
  6. Step 6: Final answer
    x = 123,635.51

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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.