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Finding the Fourth Proportional to 180.42, 270.62 and 119.94

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Solution

The fourth proportional to 180.42, 270.62 and 119.94 is: 179.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.42 : 270.62 = 119.94 : x
  2. Step 2: Convert to fraction form
    180.42/270.62 = 119.94/x
  3. Step 3: Cross multiply
    180.42x = 270.62 × 119.94
  4. Step 4: Simplify right side
    180.42x = 32,458.16
  5. Step 5: Solve for x
    x = 32,458.16/180.42
  6. Step 6: Final answer
    x = 179.90

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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.