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Finding the Fourth Proportional to 361.21, 541.50 and 268.27

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Solution

The fourth proportional to 361.21, 541.50 and 268.27 is: 402.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.21 : 541.50 = 268.27 : x
  2. Step 2: Convert to fraction form
    361.21/541.50 = 268.27/x
  3. Step 3: Cross multiply
    361.21x = 541.50 × 268.27
  4. Step 4: Simplify right side
    361.21x = 145,268.21
  5. Step 5: Solve for x
    x = 145,268.21/361.21
  6. Step 6: Final answer
    x = 402.17

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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.