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Finding the Third Proportional to 200,960.25 and 319,890.75

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Solution

The third proportional to 200,960.25 and 319,890.75 is: 509,205.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,960.25 : 319,890.75 = 319,890.75 : x
  2. Step 2: Convert to fraction form
    200,960.25/319,890.75 = 319,890.75/x
  3. Step 3: Cross multiply
    200,960.25x = 319,890.75 × 319,890.75
  4. Step 4: Simplify right side
    200,960.25x = 102,330,091,935.56
  5. Step 5: Solve for x
    x = 102,330,091,935.56/200,960.25
  6. Step 6: Final answer
    x = 509,205.64

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.