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Finding the Fourth Proportional to 262.26, 361.80 and 163.85

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Solution

The fourth proportional to 262.26, 361.80 and 163.85 is: 226.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.26 : 361.80 = 163.85 : x
  2. Step 2: Convert to fraction form
    262.26/361.80 = 163.85/x
  3. Step 3: Cross multiply
    262.26x = 361.80 × 163.85
  4. Step 4: Simplify right side
    262.26x = 59,279.12
  5. Step 5: Solve for x
    x = 59,279.12/262.26
  6. Step 6: Final answer
    x = 226.03

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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.