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Finding the Fourth Proportional to 400.48, 552.74 and 334.96

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Solution

The fourth proportional to 400.48, 552.74 and 334.96 is: 462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.48 : 552.74 = 334.96 : x
  2. Step 2: Convert to fraction form
    400.48/552.74 = 334.96/x
  3. Step 3: Cross multiply
    400.48x = 552.74 × 334.96
  4. Step 4: Simplify right side
    400.48x = 185,142.73
  5. Step 5: Solve for x
    x = 185,142.73/400.48
  6. Step 6: Final answer
    x = 462.30

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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.