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Finding the Fourth Proportional to 180.10, 270.45 and 168.85

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Solution

The fourth proportional to 180.10, 270.45 and 168.85 is: 253.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.10 : 270.45 = 168.85 : x
  2. Step 2: Convert to fraction form
    180.10/270.45 = 168.85/x
  3. Step 3: Cross multiply
    180.10x = 270.45 × 168.85
  4. Step 4: Simplify right side
    180.10x = 45,665.48
  5. Step 5: Solve for x
    x = 45,665.48/180.10
  6. Step 6: Final answer
    x = 253.56

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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.