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Finding the Fourth Proportional to 361.08, 541.11 and 178.28

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Solution

The fourth proportional to 361.08, 541.11 and 178.28 is: 267.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.08 : 541.11 = 178.28 : x
  2. Step 2: Convert to fraction form
    361.08/541.11 = 178.28/x
  3. Step 3: Cross multiply
    361.08x = 541.11 × 178.28
  4. Step 4: Simplify right side
    361.08x = 96,466.39
  5. Step 5: Solve for x
    x = 96,466.39/361.08
  6. Step 6: Final answer
    x = 267.16

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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.