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Finding the Fourth Proportional to 240.24, 331.39 and 166.43

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Solution

The fourth proportional to 240.24, 331.39 and 166.43 is: 229.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.24 : 331.39 = 166.43 : x
  2. Step 2: Convert to fraction form
    240.24/331.39 = 166.43/x
  3. Step 3: Cross multiply
    240.24x = 331.39 × 166.43
  4. Step 4: Simplify right side
    240.24x = 55,152.41
  5. Step 5: Solve for x
    x = 55,152.41/240.24
  6. Step 6: Final answer
    x = 229.57

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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.