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Finding the Fourth Proportional to 224,972.68, 310,540.48 and 129,517.42

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Solution

The fourth proportional to 224,972.68, 310,540.48 and 129,517.42 is: 178,779.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,972.68 : 310,540.48 = 129,517.42 : x
  2. Step 2: Convert to fraction form
    224,972.68/310,540.48 = 129,517.42/x
  3. Step 3: Cross multiply
    224,972.68x = 310,540.48 × 129,517.42
  4. Step 4: Simplify right side
    224,972.68x = 40,220,400,675.02
  5. Step 5: Solve for x
    x = 40,220,400,675.02/224,972.68
  6. Step 6: Final answer
    x = 178,779.05

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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.