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Finding the Third Proportional to 210,838 and 453,913

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Solution

The third proportional to 210,838 and 453,913 is: 977,229.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,838 : 453,913 = 453,913 : x
  2. Step 2: Convert to fraction form
    210,838/453,913 = 453,913/x
  3. Step 3: Cross multiply
    210,838x = 453,913 × 453,913
  4. Step 4: Simplify right side
    210,838x = 206,037,011,569
  5. Step 5: Solve for x
    x = 206,037,011,569/210,838
  6. Step 6: Final answer
    x = 977,229.02

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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.