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Finding the Fourth Proportional to 179.85, 270.08 and 178.43

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Solution

The fourth proportional to 179.85, 270.08 and 178.43 is: 267.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.85 : 270.08 = 178.43 : x
  2. Step 2: Convert to fraction form
    179.85/270.08 = 178.43/x
  3. Step 3: Cross multiply
    179.85x = 270.08 × 178.43
  4. Step 4: Simplify right side
    179.85x = 48,189.48
  5. Step 5: Solve for x
    x = 48,189.48/179.85
  6. Step 6: Final answer
    x = 267.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.