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Finding the Fourth Proportional to 266,764.53, 399,702.49 and 187,712.65

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Solution

The fourth proportional to 266,764.53, 399,702.49 and 187,712.65 is: 281,256.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,764.53 : 399,702.49 = 187,712.65 : x
  2. Step 2: Convert to fraction form
    266,764.53/399,702.49 = 187,712.65/x
  3. Step 3: Cross multiply
    266,764.53x = 399,702.49 × 187,712.65
  4. Step 4: Simplify right side
    266,764.53x = 75,029,213,609.50
  5. Step 5: Solve for x
    x = 75,029,213,609.50/266,764.53
  6. Step 6: Final answer
    x = 281,256.33

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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.