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Finding the Fourth Proportional to 178.63, 267.96 and 63.11

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Solution

The fourth proportional to 178.63, 267.96 and 63.11 is: 94.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.63 : 267.96 = 63.11 : x
  2. Step 2: Convert to fraction form
    178.63/267.96 = 63.11/x
  3. Step 3: Cross multiply
    178.63x = 267.96 × 63.11
  4. Step 4: Simplify right side
    178.63x = 16,910.96
  5. Step 5: Solve for x
    x = 16,910.96/178.63
  6. Step 6: Final answer
    x = 94.67

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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.