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Finding the Third Proportional to 483.05 and 553.92

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Solution

The third proportional to 483.05 and 553.92 is: 635.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.05 : 553.92 = 553.92 : x
  2. Step 2: Convert to fraction form
    483.05/553.92 = 553.92/x
  3. Step 3: Cross multiply
    483.05x = 553.92 × 553.92
  4. Step 4: Simplify right side
    483.05x = 306,829.44
  5. Step 5: Solve for x
    x = 306,829.44/483.05
  6. Step 6: Final answer
    x = 635.20

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.