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Finding the Fourth Proportional to 331.83, 497.43 and 229.17

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Solution

The fourth proportional to 331.83, 497.43 and 229.17 is: 343.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    331.83 : 497.43 = 229.17 : x
  2. Step 2: Convert to fraction form
    331.83/497.43 = 229.17/x
  3. Step 3: Cross multiply
    331.83x = 497.43 × 229.17
  4. Step 4: Simplify right side
    331.83x = 113,996.03
  5. Step 5: Solve for x
    x = 113,996.03/331.83
  6. Step 6: Final answer
    x = 343.54

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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.