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Finding the Fourth Proportional to 361.57, 499.15 and 250.85

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Solution

The fourth proportional to 361.57, 499.15 and 250.85 is: 346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.57 : 499.15 = 250.85 : x
  2. Step 2: Convert to fraction form
    361.57/499.15 = 250.85/x
  3. Step 3: Cross multiply
    361.57x = 499.15 × 250.85
  4. Step 4: Simplify right side
    361.57x = 125,212.40
  5. Step 5: Solve for x
    x = 125,212.40/361.57
  6. Step 6: Final answer
    x = 346.30

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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.