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Finding the Third Proportional to 210,828 and 453,894

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Solution

The third proportional to 210,828 and 453,894 is: 977,193.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,828 : 453,894 = 453,894 : x
  2. Step 2: Convert to fraction form
    210,828/453,894 = 453,894/x
  3. Step 3: Cross multiply
    210,828x = 453,894 × 453,894
  4. Step 4: Simplify right side
    210,828x = 206,019,763,236
  5. Step 5: Solve for x
    x = 206,019,763,236/210,828
  6. Step 6: Final answer
    x = 977,193.56

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.