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Finding the Fourth Proportional to 163.37, 226.59 and 158.91

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Solution

The fourth proportional to 163.37, 226.59 and 158.91 is: 220.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.37 : 226.59 = 158.91 : x
  2. Step 2: Convert to fraction form
    163.37/226.59 = 158.91/x
  3. Step 3: Cross multiply
    163.37x = 226.59 × 158.91
  4. Step 4: Simplify right side
    163.37x = 36,007.42
  5. Step 5: Solve for x
    x = 36,007.42/163.37
  6. Step 6: Final answer
    x = 220.41

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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.