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Finding the Fourth Proportional to 180.37, 270.19 and 115.17

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Solution

The fourth proportional to 180.37, 270.19 and 115.17 is: 172.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.37 : 270.19 = 115.17 : x
  2. Step 2: Convert to fraction form
    180.37/270.19 = 115.17/x
  3. Step 3: Cross multiply
    180.37x = 270.19 × 115.17
  4. Step 4: Simplify right side
    180.37x = 31,118.94
  5. Step 5: Solve for x
    x = 31,118.94/180.37
  6. Step 6: Final answer
    x = 172.53

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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.