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Finding the Fourth Proportional to 178.32, 266.14 and 163.88

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Solution

The fourth proportional to 178.32, 266.14 and 163.88 is: 244.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.32 : 266.14 = 163.88 : x
  2. Step 2: Convert to fraction form
    178.32/266.14 = 163.88/x
  3. Step 3: Cross multiply
    178.32x = 266.14 × 163.88
  4. Step 4: Simplify right side
    178.32x = 43,615.02
  5. Step 5: Solve for x
    x = 43,615.02/178.32
  6. Step 6: Final answer
    x = 244.59

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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.