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Finding the Fourth Proportional to 179.07, 268.64 and 82.88

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Solution

The fourth proportional to 179.07, 268.64 and 82.88 is: 124.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.07 : 268.64 = 82.88 : x
  2. Step 2: Convert to fraction form
    179.07/268.64 = 82.88/x
  3. Step 3: Cross multiply
    179.07x = 268.64 × 82.88
  4. Step 4: Simplify right side
    179.07x = 22,263.13
  5. Step 5: Solve for x
    x = 22,263.13/179.07
  6. Step 6: Final answer
    x = 124.33

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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.