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Finding the Fourth Proportional to 266,750.12, 399,680.94 and 187,698.27

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Solution

The fourth proportional to 266,750.12, 399,680.94 and 187,698.27 is: 281,234.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,750.12 : 399,680.94 = 187,698.27 : x
  2. Step 2: Convert to fraction form
    266,750.12/399,680.94 = 187,698.27/x
  3. Step 3: Cross multiply
    266,750.12x = 399,680.94 × 187,698.27
  4. Step 4: Simplify right side
    266,750.12x = 75,019,419,990.77
  5. Step 5: Solve for x
    x = 75,019,419,990.77/266,750.12
  6. Step 6: Final answer
    x = 281,234.81

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1.5x scale

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.