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Finding the Fourth Proportional to 180.84, 270.84 and 119.82

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Solution

The fourth proportional to 180.84, 270.84 and 119.82 is: 179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.84 : 270.84 = 119.82 : x
  2. Step 2: Convert to fraction form
    180.84/270.84 = 119.82/x
  3. Step 3: Cross multiply
    180.84x = 270.84 × 119.82
  4. Step 4: Simplify right side
    180.84x = 32,452.05
  5. Step 5: Solve for x
    x = 32,452.05/180.84
  6. Step 6: Final answer
    x = 179.45

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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.