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Finding the Fourth Proportional to 266.96, 400.02 and 252.38

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Solution

The fourth proportional to 266.96, 400.02 and 252.38 is: 378.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.96 : 400.02 = 252.38 : x
  2. Step 2: Convert to fraction form
    266.96/400.02 = 252.38/x
  3. Step 3: Cross multiply
    266.96x = 400.02 × 252.38
  4. Step 4: Simplify right side
    266.96x = 100,957.05
  5. Step 5: Solve for x
    x = 100,957.05/266.96
  6. Step 6: Final answer
    x = 378.17

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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.