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Finding the Fourth Proportional to 180.24, 270.78 and 177.12

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Solution

The fourth proportional to 180.24, 270.78 and 177.12 is: 266.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.24 : 270.78 = 177.12 : x
  2. Step 2: Convert to fraction form
    180.24/270.78 = 177.12/x
  3. Step 3: Cross multiply
    180.24x = 270.78 × 177.12
  4. Step 4: Simplify right side
    180.24x = 47,960.55
  5. Step 5: Solve for x
    x = 47,960.55/180.24
  6. Step 6: Final answer
    x = 266.09

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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.