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Finding the Third Proportional to 196,767 and 422,202

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Solution

The third proportional to 196,767 and 422,202 is: 905,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,767 : 422,202 = 422,202 : x
  2. Step 2: Convert to fraction form
    196,767/422,202 = 422,202/x
  3. Step 3: Cross multiply
    196,767x = 422,202 × 422,202
  4. Step 4: Simplify right side
    196,767x = 178,254,528,804
  5. Step 5: Solve for x
    x = 178,254,528,804/196,767
  6. Step 6: Final answer
    x = 905,916.79

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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.