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Finding the Fourth Proportional to 361.12, 501.88 and 357.28

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Solution

The fourth proportional to 361.12, 501.88 and 357.28 is: 496.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.12 : 501.88 = 357.28 : x
  2. Step 2: Convert to fraction form
    361.12/501.88 = 357.28/x
  3. Step 3: Cross multiply
    361.12x = 501.88 × 357.28
  4. Step 4: Simplify right side
    361.12x = 179,311.69
  5. Step 5: Solve for x
    x = 179,311.69/361.12
  6. Step 6: Final answer
    x = 496.54

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.