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Finding the Third Proportional to 275,450 and 425,630.50

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Solution

The third proportional to 275,450 and 425,630.50 is: 657,692.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,450 : 425,630.50 = 425,630.50 : x
  2. Step 2: Convert to fraction form
    275,450/425,630.50 = 425,630.50/x
  3. Step 3: Cross multiply
    275,450x = 425,630.50 × 425,630.50
  4. Step 4: Simplify right side
    275,450x = 181,161,322,530.25
  5. Step 5: Solve for x
    x = 181,161,322,530.25/275,450
  6. Step 6: Final answer
    x = 657,692.22

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.