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Finding the Fourth Proportional to 261.94, 361.62 and 179.17

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Solution

The fourth proportional to 261.94, 361.62 and 179.17 is: 247.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    261.94 : 361.62 = 179.17 : x
  2. Step 2: Convert to fraction form
    261.94/361.62 = 179.17/x
  3. Step 3: Cross multiply
    261.94x = 361.62 × 179.17
  4. Step 4: Simplify right side
    261.94x = 64,791.46
  5. Step 5: Solve for x
    x = 64,791.46/261.94
  6. Step 6: Final answer
    x = 247.35

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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.