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Finding the Fourth Proportional to 361.58, 499 and 204.22

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Solution

The fourth proportional to 361.58, 499 and 204.22 is: 281.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.58 : 499 = 204.22 : x
  2. Step 2: Convert to fraction form
    361.58/499 = 204.22/x
  3. Step 3: Cross multiply
    361.58x = 499 × 204.22
  4. Step 4: Simplify right side
    361.58x = 101,905.78
  5. Step 5: Solve for x
    x = 101,905.78/361.58
  6. Step 6: Final answer
    x = 281.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.