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Finding the Fourth Proportional to 180.82, 248.97 and 136.63

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Solution

The fourth proportional to 180.82, 248.97 and 136.63 is: 188.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.82 : 248.97 = 136.63 : x
  2. Step 2: Convert to fraction form
    180.82/248.97 = 136.63/x
  3. Step 3: Cross multiply
    180.82x = 248.97 × 136.63
  4. Step 4: Simplify right side
    180.82x = 34,016.77
  5. Step 5: Solve for x
    x = 34,016.77/180.82
  6. Step 6: Final answer
    x = 188.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.