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Finding the Fourth Proportional to 179.32, 247.34 and 123.34

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Solution

The fourth proportional to 179.32, 247.34 and 123.34 is: 170.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.32 : 247.34 = 123.34 : x
  2. Step 2: Convert to fraction form
    179.32/247.34 = 123.34/x
  3. Step 3: Cross multiply
    179.32x = 247.34 × 123.34
  4. Step 4: Simplify right side
    179.32x = 30,506.92
  5. Step 5: Solve for x
    x = 30,506.92/179.32
  6. Step 6: Final answer
    x = 170.13

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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.