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Finding the Fourth Proportional to 295.91, 408.34 and 171.61

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Solution

The fourth proportional to 295.91, 408.34 and 171.61 is: 236.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.91 : 408.34 = 171.61 : x
  2. Step 2: Convert to fraction form
    295.91/408.34 = 171.61/x
  3. Step 3: Cross multiply
    295.91x = 408.34 × 171.61
  4. Step 4: Simplify right side
    295.91x = 70,074.42
  5. Step 5: Solve for x
    x = 70,074.42/295.91
  6. Step 6: Final answer
    x = 236.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.