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Finding the Third Proportional to 187,809 and 281,656.50

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Solution

The third proportional to 187,809 and 281,656.50 is: 422,399.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,809 : 281,656.50 = 281,656.50 : x
  2. Step 2: Convert to fraction form
    187,809/281,656.50 = 281,656.50/x
  3. Step 3: Cross multiply
    187,809x = 281,656.50 × 281,656.50
  4. Step 4: Simplify right side
    187,809x = 79,330,383,992.25
  5. Step 5: Solve for x
    x = 79,330,383,992.25/187,809
  6. Step 6: Final answer
    x = 422,399.27

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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.