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Finding the Fourth Proportional to 240.72, 332.19 and 147.48

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Solution

The fourth proportional to 240.72, 332.19 and 147.48 is: 203.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.72 : 332.19 = 147.48 : x
  2. Step 2: Convert to fraction form
    240.72/332.19 = 147.48/x
  3. Step 3: Cross multiply
    240.72x = 332.19 × 147.48
  4. Step 4: Simplify right side
    240.72x = 48,991.38
  5. Step 5: Solve for x
    x = 48,991.38/240.72
  6. Step 6: Final answer
    x = 203.52

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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.