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Finding the Third Proportional to 372,221.50 and 815,330.50

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Solution

The third proportional to 372,221.50 and 815,330.50 is: 1,785,936.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,221.50 : 815,330.50 = 815,330.50 : x
  2. Step 2: Convert to fraction form
    372,221.50/815,330.50 = 815,330.50/x
  3. Step 3: Cross multiply
    372,221.50x = 815,330.50 × 815,330.50
  4. Step 4: Simplify right side
    372,221.50x = 664,763,824,230.25
  5. Step 5: Solve for x
    x = 664,763,824,230.25/372,221.50
  6. Step 6: Final answer
    x = 1,785,936.13

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.