Home / 275,692.20-380,537.74-161,001.78

Finding the Fourth Proportional to 275,692.20, 380,537.74 and 161,001.78

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Solution

The fourth proportional to 275,692.20, 380,537.74 and 161,001.78 is: 222,230.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,692.20 : 380,537.74 = 161,001.78 : x
  2. Step 2: Convert to fraction form
    275,692.20/380,537.74 = 161,001.78/x
  3. Step 3: Cross multiply
    275,692.20x = 380,537.74 × 161,001.78
  4. Step 4: Simplify right side
    275,692.20x = 61,267,253,497.18
  5. Step 5: Solve for x
    x = 61,267,253,497.18/275,692.20
  6. Step 6: Final answer
    x = 222,230.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.