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Finding the Third Proportional to 199,615.50 and 286,936.50

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Solution

The third proportional to 199,615.50 and 286,936.50 is: 412,455.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,615.50 : 286,936.50 = 286,936.50 : x
  2. Step 2: Convert to fraction form
    199,615.50/286,936.50 = 286,936.50/x
  3. Step 3: Cross multiply
    199,615.50x = 286,936.50 × 286,936.50
  4. Step 4: Simplify right side
    199,615.50x = 82,332,555,032.25
  5. Step 5: Solve for x
    x = 82,332,555,032.25/199,615.50
  6. Step 6: Final answer
    x = 412,455.72

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.