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Finding the Third Proportional to 187,609.50 and 399,822.75

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Solution

The third proportional to 187,609.50 and 399,822.75 is: 852,079.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,609.50 : 399,822.75 = 399,822.75 : x
  2. Step 2: Convert to fraction form
    187,609.50/399,822.75 = 399,822.75/x
  3. Step 3: Cross multiply
    187,609.50x = 399,822.75 × 399,822.75
  4. Step 4: Simplify right side
    187,609.50x = 159,858,231,417.56
  5. Step 5: Solve for x
    x = 159,858,231,417.56/187,609.50
  6. Step 6: Final answer
    x = 852,079.62

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.