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Finding the Fourth Proportional to 361.89, 543.04 and 167.09

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Solution

The fourth proportional to 361.89, 543.04 and 167.09 is: 250.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.89 : 543.04 = 167.09 : x
  2. Step 2: Convert to fraction form
    361.89/543.04 = 167.09/x
  3. Step 3: Cross multiply
    361.89x = 543.04 × 167.09
  4. Step 4: Simplify right side
    361.89x = 90,733.42
  5. Step 5: Solve for x
    x = 90,733.42/361.89
  6. Step 6: Final answer
    x = 250.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.