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Finding the Fourth Proportional to 163.70, 226.05 and 119.69

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Solution

The fourth proportional to 163.70, 226.05 and 119.69 is: 165.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.70 : 226.05 = 119.69 : x
  2. Step 2: Convert to fraction form
    163.70/226.05 = 119.69/x
  3. Step 3: Cross multiply
    163.70x = 226.05 × 119.69
  4. Step 4: Simplify right side
    163.70x = 27,054.20
  5. Step 5: Solve for x
    x = 27,054.20/163.70
  6. Step 6: Final answer
    x = 165.27

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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.