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Finding the Fourth Proportional to 175.48, 263.30 and 79.24

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Solution

The fourth proportional to 175.48, 263.30 and 79.24 is: 118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.48 : 263.30 = 79.24 : x
  2. Step 2: Convert to fraction form
    175.48/263.30 = 79.24/x
  3. Step 3: Cross multiply
    175.48x = 263.30 × 79.24
  4. Step 4: Simplify right side
    175.48x = 20,863.89
  5. Step 5: Solve for x
    x = 20,863.89/175.48
  6. Step 6: Final answer
    x = 118.90

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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.