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Finding the Fourth Proportional to 361.15, 498.17 and 250.43

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Solution

The fourth proportional to 361.15, 498.17 and 250.43 is: 345.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.15 : 498.17 = 250.43 : x
  2. Step 2: Convert to fraction form
    361.15/498.17 = 250.43/x
  3. Step 3: Cross multiply
    361.15x = 498.17 × 250.43
  4. Step 4: Simplify right side
    361.15x = 124,754.85
  5. Step 5: Solve for x
    x = 124,754.85/361.15
  6. Step 6: Final answer
    x = 345.44

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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.