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Finding the Fourth Proportional to 261.92, 361.34 and 183.25

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Solution

The fourth proportional to 261.92, 361.34 and 183.25 is: 252.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    261.92 : 361.34 = 183.25 : x
  2. Step 2: Convert to fraction form
    261.92/361.34 = 183.25/x
  3. Step 3: Cross multiply
    261.92x = 361.34 × 183.25
  4. Step 4: Simplify right side
    261.92x = 66,215.78
  5. Step 5: Solve for x
    x = 66,215.78/261.92
  6. Step 6: Final answer
    x = 252.81

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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.