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Finding the Fourth Proportional to 173.91, 260.59 and 112.85

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Solution

The fourth proportional to 173.91, 260.59 and 112.85 is: 169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.91 : 260.59 = 112.85 : x
  2. Step 2: Convert to fraction form
    173.91/260.59 = 112.85/x
  3. Step 3: Cross multiply
    173.91x = 260.59 × 112.85
  4. Step 4: Simplify right side
    173.91x = 29,407.58
  5. Step 5: Solve for x
    x = 29,407.58/173.91
  6. Step 6: Final answer
    x = 169.10

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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.