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Finding the Fourth Proportional to 203.28, 280.39 and 179.88

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Solution

The fourth proportional to 203.28, 280.39 and 179.88 is: 248.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.28 : 280.39 = 179.88 : x
  2. Step 2: Convert to fraction form
    203.28/280.39 = 179.88/x
  3. Step 3: Cross multiply
    203.28x = 280.39 × 179.88
  4. Step 4: Simplify right side
    203.28x = 50,436.55
  5. Step 5: Solve for x
    x = 50,436.55/203.28
  6. Step 6: Final answer
    x = 248.11

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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.