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Finding the Fourth Proportional to 262.25, 361.94 and 163.95

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Solution

The fourth proportional to 262.25, 361.94 and 163.95 is: 226.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.25 : 361.94 = 163.95 : x
  2. Step 2: Convert to fraction form
    262.25/361.94 = 163.95/x
  3. Step 3: Cross multiply
    262.25x = 361.94 × 163.95
  4. Step 4: Simplify right side
    262.25x = 59,340.06
  5. Step 5: Solve for x
    x = 59,340.06/262.25
  6. Step 6: Final answer
    x = 226.28

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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.