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Finding the Fourth Proportional to 175.20, 263.04 and 103.14

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Solution

The fourth proportional to 175.20, 263.04 and 103.14 is: 154.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.20 : 263.04 = 103.14 : x
  2. Step 2: Convert to fraction form
    175.20/263.04 = 103.14/x
  3. Step 3: Cross multiply
    175.20x = 263.04 × 103.14
  4. Step 4: Simplify right side
    175.20x = 27,129.95
  5. Step 5: Solve for x
    x = 27,129.95/175.20
  6. Step 6: Final answer
    x = 154.85

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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.