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Finding the Fourth Proportional to 361.64, 499.29 and 251.08

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Solution

The fourth proportional to 361.64, 499.29 and 251.08 is: 346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.64 : 499.29 = 251.08 : x
  2. Step 2: Convert to fraction form
    361.64/499.29 = 251.08/x
  3. Step 3: Cross multiply
    361.64x = 499.29 × 251.08
  4. Step 4: Simplify right side
    361.64x = 125,361.73
  5. Step 5: Solve for x
    x = 125,361.73/361.64
  6. Step 6: Final answer
    x = 346.65

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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.