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Finding the Fourth Proportional to 177.03, 244.17 and 117.90

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Solution

The fourth proportional to 177.03, 244.17 and 117.90 is: 162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.03 : 244.17 = 117.90 : x
  2. Step 2: Convert to fraction form
    177.03/244.17 = 117.90/x
  3. Step 3: Cross multiply
    177.03x = 244.17 × 117.90
  4. Step 4: Simplify right side
    177.03x = 28,787.64
  5. Step 5: Solve for x
    x = 28,787.64/177.03
  6. Step 6: Final answer
    x = 162.61

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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.