Home / 231,449.23-347,102.78-81,654.49

Finding the Fourth Proportional to 231,449.23, 347,102.78 and 81,654.49

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Solution

The fourth proportional to 231,449.23, 347,102.78 and 81,654.49 is: 122,456.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,449.23 : 347,102.78 = 81,654.49 : x
  2. Step 2: Convert to fraction form
    231,449.23/347,102.78 = 81,654.49/x
  3. Step 3: Cross multiply
    231,449.23x = 347,102.78 × 81,654.49
  4. Step 4: Simplify right side
    231,449.23x = 28,342,500,504.09
  5. Step 5: Solve for x
    x = 28,342,500,504.09/231,449.23
  6. Step 6: Final answer
    x = 122,456.66

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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.