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Finding the Fourth Proportional to 361.45, 541.33 and 178.26

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Solution

The fourth proportional to 361.45, 541.33 and 178.26 is: 266.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.45 : 541.33 = 178.26 : x
  2. Step 2: Convert to fraction form
    361.45/541.33 = 178.26/x
  3. Step 3: Cross multiply
    361.45x = 541.33 × 178.26
  4. Step 4: Simplify right side
    361.45x = 96,493.89
  5. Step 5: Solve for x
    x = 96,493.89/361.45
  6. Step 6: Final answer
    x = 266.96

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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.