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Finding the Fourth Proportional to 240.57, 332.38 and 167.21

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Solution

The fourth proportional to 240.57, 332.38 and 167.21 is: 231.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.57 : 332.38 = 167.21 : x
  2. Step 2: Convert to fraction form
    240.57/332.38 = 167.21/x
  3. Step 3: Cross multiply
    240.57x = 332.38 × 167.21
  4. Step 4: Simplify right side
    240.57x = 55,578.45
  5. Step 5: Solve for x
    x = 55,578.45/240.57
  6. Step 6: Final answer
    x = 231.03

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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.