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Finding the Third Proportional to 259,740.50 and 388,565.25

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Solution

The third proportional to 259,740.50 and 388,565.25 is: 581,283.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,740.50 : 388,565.25 = 388,565.25 : x
  2. Step 2: Convert to fraction form
    259,740.50/388,565.25 = 388,565.25/x
  3. Step 3: Cross multiply
    259,740.50x = 388,565.25 × 388,565.25
  4. Step 4: Simplify right side
    259,740.50x = 150,982,953,507.56
  5. Step 5: Solve for x
    x = 150,982,953,507.56/259,740.50
  6. Step 6: Final answer
    x = 581,283.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.