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Finding the Fourth Proportional to 175.97, 263.99 and 67.70

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Solution

The fourth proportional to 175.97, 263.99 and 67.70 is: 101.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.97 : 263.99 = 67.70 : x
  2. Step 2: Convert to fraction form
    175.97/263.99 = 67.70/x
  3. Step 3: Cross multiply
    175.97x = 263.99 × 67.70
  4. Step 4: Simplify right side
    175.97x = 17,872.12
  5. Step 5: Solve for x
    x = 17,872.12/175.97
  6. Step 6: Final answer
    x = 101.56

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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.