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Finding the Fourth Proportional to 327.96, 452.57 and 196.97

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Solution

The fourth proportional to 327.96, 452.57 and 196.97 is: 271.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.96 : 452.57 = 196.97 : x
  2. Step 2: Convert to fraction form
    327.96/452.57 = 196.97/x
  3. Step 3: Cross multiply
    327.96x = 452.57 × 196.97
  4. Step 4: Simplify right side
    327.96x = 89,139.47
  5. Step 5: Solve for x
    x = 89,139.47/327.96
  6. Step 6: Final answer
    x = 271.80

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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.