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Finding the Fourth Proportional to 179.28, 270.48 and 177.12

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Solution

The fourth proportional to 179.28, 270.48 and 177.12 is: 267.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.28 : 270.48 = 177.12 : x
  2. Step 2: Convert to fraction form
    179.28/270.48 = 177.12/x
  3. Step 3: Cross multiply
    179.28x = 270.48 × 177.12
  4. Step 4: Simplify right side
    179.28x = 47,907.42
  5. Step 5: Solve for x
    x = 47,907.42/179.28
  6. Step 6: Final answer
    x = 267.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.