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Finding the Fourth Proportional to 240.81, 332.17 and 169.90

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Solution

The fourth proportional to 240.81, 332.17 and 169.90 is: 234.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.81 : 332.17 = 169.90 : x
  2. Step 2: Convert to fraction form
    240.81/332.17 = 169.90/x
  3. Step 3: Cross multiply
    240.81x = 332.17 × 169.90
  4. Step 4: Simplify right side
    240.81x = 56,435.67
  5. Step 5: Solve for x
    x = 56,435.67/240.81
  6. Step 6: Final answer
    x = 234.36

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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.