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Finding the Fourth Proportional to 180.19, 270.27 and 149.80

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Solution

The fourth proportional to 180.19, 270.27 and 149.80 is: 224.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.19 : 270.27 = 149.80 : x
  2. Step 2: Convert to fraction form
    180.19/270.27 = 149.80/x
  3. Step 3: Cross multiply
    180.19x = 270.27 × 149.80
  4. Step 4: Simplify right side
    180.19x = 40,486.45
  5. Step 5: Solve for x
    x = 40,486.45/180.19
  6. Step 6: Final answer
    x = 224.69

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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.