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Finding the Third Proportional to 378.56 and 567.28

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Solution

The third proportional to 378.56 and 567.28 is: 850.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.56 : 567.28 = 567.28 : x
  2. Step 2: Convert to fraction form
    378.56/567.28 = 567.28/x
  3. Step 3: Cross multiply
    378.56x = 567.28 × 567.28
  4. Step 4: Simplify right side
    378.56x = 321,808.02
  5. Step 5: Solve for x
    x = 321,808.02/378.56
  6. Step 6: Final answer
    x = 850.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.