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Finding the Fourth Proportional to 176.65, 243.77 and 101.94

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Solution

The fourth proportional to 176.65, 243.77 and 101.94 is: 140.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.65 : 243.77 = 101.94 : x
  2. Step 2: Convert to fraction form
    176.65/243.77 = 101.94/x
  3. Step 3: Cross multiply
    176.65x = 243.77 × 101.94
  4. Step 4: Simplify right side
    176.65x = 24,850.17
  5. Step 5: Solve for x
    x = 24,850.17/176.65
  6. Step 6: Final answer
    x = 140.68

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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.