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Finding the Fourth Proportional to 178.11, 265.41 and 167.63

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Solution

The fourth proportional to 178.11, 265.41 and 167.63 is: 249.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.11 : 265.41 = 167.63 : x
  2. Step 2: Convert to fraction form
    178.11/265.41 = 167.63/x
  3. Step 3: Cross multiply
    178.11x = 265.41 × 167.63
  4. Step 4: Simplify right side
    178.11x = 44,489.35
  5. Step 5: Solve for x
    x = 44,489.35/178.11
  6. Step 6: Final answer
    x = 249.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.