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Finding the Third Proportional to 210,867 and 454,948.50

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Solution

The third proportional to 210,867 and 454,948.50 is: 981,557.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,867 : 454,948.50 = 454,948.50 : x
  2. Step 2: Convert to fraction form
    210,867/454,948.50 = 454,948.50/x
  3. Step 3: Cross multiply
    210,867x = 454,948.50 × 454,948.50
  4. Step 4: Simplify right side
    210,867x = 206,978,137,652.25
  5. Step 5: Solve for x
    x = 206,978,137,652.25/210,867
  6. Step 6: Final answer
    x = 981,557.75

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.