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Finding the Fourth Proportional to 379,171.87, 568,567.28 and 126,363.78

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Solution

The fourth proportional to 379,171.87, 568,567.28 and 126,363.78 is: 189,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,171.87 : 568,567.28 = 126,363.78 : x
  2. Step 2: Convert to fraction form
    379,171.87/568,567.28 = 126,363.78/x
  3. Step 3: Cross multiply
    379,171.87x = 568,567.28 × 126,363.78
  4. Step 4: Simplify right side
    379,171.87x = 71,846,311,001.03
  5. Step 5: Solve for x
    x = 71,846,311,001.03/379,171.87
  6. Step 6: Final answer
    x = 189,482.18

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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.