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Finding the Fourth Proportional to 179.22, 266.72 and 171.54

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Solution

The fourth proportional to 179.22, 266.72 and 171.54 is: 255.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.22 : 266.72 = 171.54 : x
  2. Step 2: Convert to fraction form
    179.22/266.72 = 171.54/x
  3. Step 3: Cross multiply
    179.22x = 266.72 × 171.54
  4. Step 4: Simplify right side
    179.22x = 45,752.29
  5. Step 5: Solve for x
    x = 45,752.29/179.22
  6. Step 6: Final answer
    x = 255.29

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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.