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Finding the Fourth Proportional to 361.03, 541.48 and 165.82

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Solution

The fourth proportional to 361.03, 541.48 and 165.82 is: 248.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.03 : 541.48 = 165.82 : x
  2. Step 2: Convert to fraction form
    361.03/541.48 = 165.82/x
  3. Step 3: Cross multiply
    361.03x = 541.48 × 165.82
  4. Step 4: Simplify right side
    361.03x = 89,784.68
  5. Step 5: Solve for x
    x = 89,784.68/361.03
  6. Step 6: Final answer
    x = 248.69

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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.