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Finding the Fourth Proportional to 557.28, 764.24 and 552.96

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Solution

The fourth proportional to 557.28, 764.24 and 552.96 is: 758.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.28 : 764.24 = 552.96 : x
  2. Step 2: Convert to fraction form
    557.28/764.24 = 552.96/x
  3. Step 3: Cross multiply
    557.28x = 764.24 × 552.96
  4. Step 4: Simplify right side
    557.28x = 422,591.39
  5. Step 5: Solve for x
    x = 422,591.39/557.28
  6. Step 6: Final answer
    x = 758.31

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.