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Finding the Third Proportional to 320,938.50 and 448,669.50

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Solution

The third proportional to 320,938.50 and 448,669.50 is: 627,236.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,938.50 : 448,669.50 = 448,669.50 : x
  2. Step 2: Convert to fraction form
    320,938.50/448,669.50 = 448,669.50/x
  3. Step 3: Cross multiply
    320,938.50x = 448,669.50 × 448,669.50
  4. Step 4: Simplify right side
    320,938.50x = 201,304,320,230.25
  5. Step 5: Solve for x
    x = 201,304,320,230.25/320,938.50
  6. Step 6: Final answer
    x = 627,236.43

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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.