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Finding the Third Proportional to 710.25 and 764.25

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Solution

The third proportional to 710.25 and 764.25 is: 822.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.25 : 764.25 = 764.25 : x
  2. Step 2: Convert to fraction form
    710.25/764.25 = 764.25/x
  3. Step 3: Cross multiply
    710.25x = 764.25 × 764.25
  4. Step 4: Simplify right side
    710.25x = 584,078.06
  5. Step 5: Solve for x
    x = 584,078.06/710.25
  6. Step 6: Final answer
    x = 822.36

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.