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Finding the Fourth Proportional to 177.68, 244.84 and 140.88

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Solution

The fourth proportional to 177.68, 244.84 and 140.88 is: 194.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.68 : 244.84 = 140.88 : x
  2. Step 2: Convert to fraction form
    177.68/244.84 = 140.88/x
  3. Step 3: Cross multiply
    177.68x = 244.84 × 140.88
  4. Step 4: Simplify right side
    177.68x = 34,493.06
  5. Step 5: Solve for x
    x = 34,493.06/177.68
  6. Step 6: Final answer
    x = 194.13

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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.