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Finding the Third Proportional to 320,845.50 and 448,589.25

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Solution

The third proportional to 320,845.50 and 448,589.25 is: 627,193.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,845.50 : 448,589.25 = 448,589.25 : x
  2. Step 2: Convert to fraction form
    320,845.50/448,589.25 = 448,589.25/x
  3. Step 3: Cross multiply
    320,845.50x = 448,589.25 × 448,589.25
  4. Step 4: Simplify right side
    320,845.50x = 201,232,315,215.56
  5. Step 5: Solve for x
    x = 201,232,315,215.56/320,845.50
  6. Step 6: Final answer
    x = 627,193.82

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.