Home / 266,764.28-399,702.12-187,712.40

Finding the Fourth Proportional to 266,764.28, 399,702.12 and 187,712.40

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Solution

The fourth proportional to 266,764.28, 399,702.12 and 187,712.40 is: 281,255.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,764.28 : 399,702.12 = 187,712.40 : x
  2. Step 2: Convert to fraction form
    266,764.28/399,702.12 = 187,712.40/x
  3. Step 3: Cross multiply
    266,764.28x = 399,702.12 × 187,712.40
  4. Step 4: Simplify right side
    266,764.28x = 75,029,044,230.29
  5. Step 5: Solve for x
    x = 75,029,044,230.29/266,764.28
  6. Step 6: Final answer
    x = 281,255.97

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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.