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Finding the Third Proportional to 269,866.50 and 396,051.75

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Solution

The third proportional to 269,866.50 and 396,051.75 is: 581,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,866.50 : 396,051.75 = 396,051.75 : x
  2. Step 2: Convert to fraction form
    269,866.50/396,051.75 = 396,051.75/x
  3. Step 3: Cross multiply
    269,866.50x = 396,051.75 × 396,051.75
  4. Step 4: Simplify right side
    269,866.50x = 156,856,988,678.06
  5. Step 5: Solve for x
    x = 156,856,988,678.06/269,866.50
  6. Step 6: Final answer
    x = 581,239.20

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.