Home / 392,817.60-542,158.92-231,663.24

Finding the Fourth Proportional to 392,817.60, 542,158.92 and 231,663.24

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Solution

The fourth proportional to 392,817.60, 542,158.92 and 231,663.24 is: 319,736.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,817.60 : 542,158.92 = 231,663.24 : x
  2. Step 2: Convert to fraction form
    392,817.60/542,158.92 = 231,663.24/x
  3. Step 3: Cross multiply
    392,817.60x = 542,158.92 × 231,663.24
  4. Step 4: Simplify right side
    392,817.60x = 125,598,292,002.10
  5. Step 5: Solve for x
    x = 125,598,292,002.10/392,817.60
  6. Step 6: Final answer
    x = 319,736.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.