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Finding the Fourth Proportional to 351.44, 484.44 and 268.28

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Solution

The fourth proportional to 351.44, 484.44 and 268.28 is: 369.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.44 : 484.44 = 268.28 : x
  2. Step 2: Convert to fraction form
    351.44/484.44 = 268.28/x
  3. Step 3: Cross multiply
    351.44x = 484.44 × 268.28
  4. Step 4: Simplify right side
    351.44x = 129,965.56
  5. Step 5: Solve for x
    x = 129,965.56/351.44
  6. Step 6: Final answer
    x = 369.81

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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.