Home / 331,716.52-497,280.11-129,265.76

Finding the Fourth Proportional to 331,716.52, 497,280.11 and 129,265.76

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Solution

The fourth proportional to 331,716.52, 497,280.11 and 129,265.76 is: 193,783.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,716.52 : 497,280.11 = 129,265.76 : x
  2. Step 2: Convert to fraction form
    331,716.52/497,280.11 = 129,265.76/x
  3. Step 3: Cross multiply
    331,716.52x = 497,280.11 × 129,265.76
  4. Step 4: Simplify right side
    331,716.52x = 64,281,292,918.40
  5. Step 5: Solve for x
    x = 64,281,292,918.40/331,716.52
  6. Step 6: Final answer
    x = 193,783.81

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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.