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Finding the Fourth Proportional to 400.18, 552.02 and 234.36

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Solution

The fourth proportional to 400.18, 552.02 and 234.36 is: 323.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.18 : 552.02 = 234.36 : x
  2. Step 2: Convert to fraction form
    400.18/552.02 = 234.36/x
  3. Step 3: Cross multiply
    400.18x = 552.02 × 234.36
  4. Step 4: Simplify right side
    400.18x = 129,372.09
  5. Step 5: Solve for x
    x = 129,372.09/400.18
  6. Step 6: Final answer
    x = 323.29

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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.