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Finding the Fourth Proportional to 327.17, 451.49 and 179.80

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Solution

The fourth proportional to 327.17, 451.49 and 179.80 is: 248.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.17 : 451.49 = 179.80 : x
  2. Step 2: Convert to fraction form
    327.17/451.49 = 179.80/x
  3. Step 3: Cross multiply
    327.17x = 451.49 × 179.80
  4. Step 4: Simplify right side
    327.17x = 81,179.43
  5. Step 5: Solve for x
    x = 81,179.43/327.17
  6. Step 6: Final answer
    x = 248.12

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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.