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Finding the Fourth Proportional to 179.91, 248.81 and 163.58

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Solution

The fourth proportional to 179.91, 248.81 and 163.58 is: 226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.91 : 248.81 = 163.58 : x
  2. Step 2: Convert to fraction form
    179.91/248.81 = 163.58/x
  3. Step 3: Cross multiply
    179.91x = 248.81 × 163.58
  4. Step 4: Simplify right side
    179.91x = 40,698.28
  5. Step 5: Solve for x
    x = 40,698.28/179.91
  6. Step 6: Final answer
    x = 226.21

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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.