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Finding the Fourth Proportional to 295.91, 408.37 and 163.14

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Solution

The fourth proportional to 295.91, 408.37 and 163.14 is: 225.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.91 : 408.37 = 163.14 : x
  2. Step 2: Convert to fraction form
    295.91/408.37 = 163.14/x
  3. Step 3: Cross multiply
    295.91x = 408.37 × 163.14
  4. Step 4: Simplify right side
    295.91x = 66,622.15
  5. Step 5: Solve for x
    x = 66,622.15/295.91
  6. Step 6: Final answer
    x = 225.14

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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.