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Finding the Third Proportional to 199.25 and 471.13

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Solution

The third proportional to 199.25 and 471.13 is: 1,113.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    199.25 : 471.13 = 471.13 : x
  2. Step 2: Convert to fraction form
    199.25/471.13 = 471.13/x
  3. Step 3: Cross multiply
    199.25x = 471.13 × 471.13
  4. Step 4: Simplify right side
    199.25x = 221,958.77
  5. Step 5: Solve for x
    x = 221,958.77/199.25
  6. Step 6: Final answer
    x = 1,113.97

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.