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Finding the Fourth Proportional to 331.33, 496.62 and 114.73

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Solution

The fourth proportional to 331.33, 496.62 and 114.73 is: 171.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    331.33 : 496.62 = 114.73 : x
  2. Step 2: Convert to fraction form
    331.33/496.62 = 114.73/x
  3. Step 3: Cross multiply
    331.33x = 496.62 × 114.73
  4. Step 4: Simplify right side
    331.33x = 56,977.21
  5. Step 5: Solve for x
    x = 56,977.21/331.33
  6. Step 6: Final answer
    x = 171.97

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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.