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Finding the Fourth Proportional to 178.90, 268.17 and 110.41

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Solution

The fourth proportional to 178.90, 268.17 and 110.41 is: 165.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.90 : 268.17 = 110.41 : x
  2. Step 2: Convert to fraction form
    178.90/268.17 = 110.41/x
  3. Step 3: Cross multiply
    178.90x = 268.17 × 110.41
  4. Step 4: Simplify right side
    178.90x = 29,608.65
  5. Step 5: Solve for x
    x = 29,608.65/178.90
  6. Step 6: Final answer
    x = 165.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.