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Finding the Third Proportional to 672.75 and 897.19

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Solution

The third proportional to 672.75 and 897.19 is: 1,196.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.75 : 897.19 = 897.19 : x
  2. Step 2: Convert to fraction form
    672.75/897.19 = 897.19/x
  3. Step 3: Cross multiply
    672.75x = 897.19 × 897.19
  4. Step 4: Simplify right side
    672.75x = 804,945.41
  5. Step 5: Solve for x
    x = 804,945.41/672.75
  6. Step 6: Final answer
    x = 1,196.50

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.