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Finding the Fourth Proportional to 400.18, 552.01 and 252.56

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Solution

The fourth proportional to 400.18, 552.01 and 252.56 is: 348.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.18 : 552.01 = 252.56 : x
  2. Step 2: Convert to fraction form
    400.18/552.01 = 252.56/x
  3. Step 3: Cross multiply
    400.18x = 552.01 × 252.56
  4. Step 4: Simplify right side
    400.18x = 139,415.65
  5. Step 5: Solve for x
    x = 139,415.65/400.18
  6. Step 6: Final answer
    x = 348.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.