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Finding the Fourth Proportional to 180.36, 247.29 and 171.08

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Solution

The fourth proportional to 180.36, 247.29 and 171.08 is: 234.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.36 : 247.29 = 171.08 : x
  2. Step 2: Convert to fraction form
    180.36/247.29 = 171.08/x
  3. Step 3: Cross multiply
    180.36x = 247.29 × 171.08
  4. Step 4: Simplify right side
    180.36x = 42,306.37
  5. Step 5: Solve for x
    x = 42,306.37/180.36
  6. Step 6: Final answer
    x = 234.57

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.