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Finding the Fourth Proportional to 252,115.52, 347,919.48 and 137,394.20

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Solution

The fourth proportional to 252,115.52, 347,919.48 and 137,394.20 is: 189,604.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,115.52 : 347,919.48 = 137,394.20 : x
  2. Step 2: Convert to fraction form
    252,115.52/347,919.48 = 137,394.20/x
  3. Step 3: Cross multiply
    252,115.52x = 347,919.48 × 137,394.20
  4. Step 4: Simplify right side
    252,115.52x = 47,802,119,488.81
  5. Step 5: Solve for x
    x = 47,802,119,488.81/252,115.52
  6. Step 6: Final answer
    x = 189,604.04

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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.