Home / 331,719.40-497,643.90-132,005.80

Finding the Fourth Proportional to 331,719.40, 497,643.90 and 132,005.80

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Solution

The fourth proportional to 331,719.40, 497,643.90 and 132,005.80 is: 198,034.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,719.40 : 497,643.90 = 132,005.80 : x
  2. Step 2: Convert to fraction form
    331,719.40/497,643.90 = 132,005.80/x
  3. Step 3: Cross multiply
    331,719.40x = 497,643.90 × 132,005.80
  4. Step 4: Simplify right side
    331,719.40x = 65,691,881,134.62
  5. Step 5: Solve for x
    x = 65,691,881,134.62/331,719.40
  6. Step 6: Final answer
    x = 198,034.49

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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.