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Finding the Fourth Proportional to 275,908.17, 380,741.01 and 161,197.43

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Solution

The fourth proportional to 275,908.17, 380,741.01 and 161,197.43 is: 222,445.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,908.17 : 380,741.01 = 161,197.43 : x
  2. Step 2: Convert to fraction form
    275,908.17/380,741.01 = 161,197.43/x
  3. Step 3: Cross multiply
    275,908.17x = 380,741.01 × 161,197.43
  4. Step 4: Simplify right side
    275,908.17x = 61,374,469,799.41
  5. Step 5: Solve for x
    x = 61,374,469,799.41/275,908.17
  6. Step 6: Final answer
    x = 222,445.28

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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.