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Finding the Third Proportional to 488.25 and 731.88

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Solution

The third proportional to 488.25 and 731.88 is: 1,097.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.25 : 731.88 = 731.88 : x
  2. Step 2: Convert to fraction form
    488.25/731.88 = 731.88/x
  3. Step 3: Cross multiply
    488.25x = 731.88 × 731.88
  4. Step 4: Simplify right side
    488.25x = 535,641.02
  5. Step 5: Solve for x
    x = 535,641.02/488.25
  6. Step 6: Final answer
    x = 1,097.06

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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.