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Finding the Third Proportional to 456.50 and 994.75

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Solution

The third proportional to 456.50 and 994.75 is: 2,167.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.50 : 994.75 = 994.75 : x
  2. Step 2: Convert to fraction form
    456.50/994.75 = 994.75/x
  3. Step 3: Cross multiply
    456.50x = 994.75 × 994.75
  4. Step 4: Simplify right side
    456.50x = 989,527.56
  5. Step 5: Solve for x
    x = 989,527.56/456.50
  6. Step 6: Final answer
    x = 2,167.64

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.