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Finding the Third Proportional to 663.19 and 735.19

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Solution

The third proportional to 663.19 and 735.19 is: 815.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    663.19 : 735.19 = 735.19 : x
  2. Step 2: Convert to fraction form
    663.19/735.19 = 735.19/x
  3. Step 3: Cross multiply
    663.19x = 735.19 × 735.19
  4. Step 4: Simplify right side
    663.19x = 540,500.66
  5. Step 5: Solve for x
    x = 540,500.66/663.19
  6. Step 6: Final answer
    x = 815.00

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.