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Finding the Fourth Proportional to 224,998.90, 310,576.61 and 129,543.64

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Solution

The fourth proportional to 224,998.90, 310,576.61 and 129,543.64 is: 178,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,998.90 : 310,576.61 = 129,543.64 : x
  2. Step 2: Convert to fraction form
    224,998.90/310,576.61 = 129,543.64/x
  3. Step 3: Cross multiply
    224,998.90x = 310,576.61 × 129,543.64
  4. Step 4: Simplify right side
    224,998.90x = 40,233,222,357.66
  5. Step 5: Solve for x
    x = 40,233,222,357.66/224,998.90
  6. Step 6: Final answer
    x = 178,815.20

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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.