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Finding the Fourth Proportional to 163.32, 226.55 and 159.27

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Solution

The fourth proportional to 163.32, 226.55 and 159.27 is: 220.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.32 : 226.55 = 159.27 : x
  2. Step 2: Convert to fraction form
    163.32/226.55 = 159.27/x
  3. Step 3: Cross multiply
    163.32x = 226.55 × 159.27
  4. Step 4: Simplify right side
    163.32x = 36,081.82
  5. Step 5: Solve for x
    x = 36,081.82/163.32
  6. Step 6: Final answer
    x = 220.93

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.