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Finding the Third Proportional to 90,832 and 199,585

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Solution

The third proportional to 90,832 and 199,585 is: 438,547.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,832 : 199,585 = 199,585 : x
  2. Step 2: Convert to fraction form
    90,832/199,585 = 199,585/x
  3. Step 3: Cross multiply
    90,832x = 199,585 × 199,585
  4. Step 4: Simplify right side
    90,832x = 39,834,172,225
  5. Step 5: Solve for x
    x = 39,834,172,225/90,832
  6. Step 6: Final answer
    x = 438,547.78

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.