Home / 321,419.38-482,017.28-131,825.92

Finding the Fourth Proportional to 321,419.38, 482,017.28 and 131,825.92

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Solution

The fourth proportional to 321,419.38, 482,017.28 and 131,825.92 is: 197,693.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,419.38 : 482,017.28 = 131,825.92 : x
  2. Step 2: Convert to fraction form
    321,419.38/482,017.28 = 131,825.92/x
  3. Step 3: Cross multiply
    321,419.38x = 482,017.28 × 131,825.92
  4. Step 4: Simplify right side
    321,419.38x = 63,542,371,391.90
  5. Step 5: Solve for x
    x = 63,542,371,391.90/321,419.38
  6. Step 6: Final answer
    x = 197,693.03

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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.