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Finding the Third Proportional to 200,349 and 286,481.25

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Solution

The third proportional to 200,349 and 286,481.25 is: 409,642.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,349 : 286,481.25 = 286,481.25 : x
  2. Step 2: Convert to fraction form
    200,349/286,481.25 = 286,481.25/x
  3. Step 3: Cross multiply
    200,349x = 286,481.25 × 286,481.25
  4. Step 4: Simplify right side
    200,349x = 82,071,506,601.56
  5. Step 5: Solve for x
    x = 82,071,506,601.56/200,349
  6. Step 6: Final answer
    x = 409,642.71

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.