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Finding the Fourth Proportional to 175.95, 263.96 and 67.76

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Solution

The fourth proportional to 175.95, 263.96 and 67.76 is: 101.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.95 : 263.96 = 67.76 : x
  2. Step 2: Convert to fraction form
    175.95/263.96 = 67.76/x
  3. Step 3: Cross multiply
    175.95x = 263.96 × 67.76
  4. Step 4: Simplify right side
    175.95x = 17,884.27
  5. Step 5: Solve for x
    x = 17,884.27/175.95
  6. Step 6: Final answer
    x = 101.64

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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.