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Finding the Fourth Proportional to 379,189.80, 568,594.08 and 126,381.65

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Solution

The fourth proportional to 379,189.80, 568,594.08 and 126,381.65 is: 189,508.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,189.80 : 568,594.08 = 126,381.65 : x
  2. Step 2: Convert to fraction form
    379,189.80/568,594.08 = 126,381.65/x
  3. Step 3: Cross multiply
    379,189.80x = 568,594.08 × 126,381.65
  4. Step 4: Simplify right side
    379,189.80x = 71,859,855,167.66
  5. Step 5: Solve for x
    x = 71,859,855,167.66/379,189.80
  6. Step 6: Final answer
    x = 189,508.94

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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.