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Finding the Third Proportional to 200,975.75 and 418,489.75

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Solution

The third proportional to 200,975.75 and 418,489.75 is: 871,416.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,975.75 : 418,489.75 = 418,489.75 : x
  2. Step 2: Convert to fraction form
    200,975.75/418,489.75 = 418,489.75/x
  3. Step 3: Cross multiply
    200,975.75x = 418,489.75 × 418,489.75
  4. Step 4: Simplify right side
    200,975.75x = 175,133,670,855.06
  5. Step 5: Solve for x
    x = 175,133,670,855.06/200,975.75
  6. Step 6: Final answer
    x = 871,416.93

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.