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Finding the Fourth Proportional to 177.18, 244.12 and 118.86

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Solution

The fourth proportional to 177.18, 244.12 and 118.86 is: 163.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.18 : 244.12 = 118.86 : x
  2. Step 2: Convert to fraction form
    177.18/244.12 = 118.86/x
  3. Step 3: Cross multiply
    177.18x = 244.12 × 118.86
  4. Step 4: Simplify right side
    177.18x = 29,014.29
  5. Step 5: Solve for x
    x = 29,014.29/177.18
  6. Step 6: Final answer
    x = 163.76

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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.