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Finding the Fourth Proportional to 180.36, 248.92 and 114.88

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Solution

The fourth proportional to 180.36, 248.92 and 114.88 is: 158.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.36 : 248.92 = 114.88 : x
  2. Step 2: Convert to fraction form
    180.36/248.92 = 114.88/x
  3. Step 3: Cross multiply
    180.36x = 248.92 × 114.88
  4. Step 4: Simplify right side
    180.36x = 28,595.93
  5. Step 5: Solve for x
    x = 28,595.93/180.36
  6. Step 6: Final answer
    x = 158.55

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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.