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Finding the Fourth Proportional to 275,933.89, 380,790.26 and 161,219.26

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Solution

The fourth proportional to 275,933.89, 380,790.26 and 161,219.26 is: 222,483.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,933.89 : 380,790.26 = 161,219.26 : x
  2. Step 2: Convert to fraction form
    275,933.89/380,790.26 = 161,219.26/x
  3. Step 3: Cross multiply
    275,933.89x = 380,790.26 × 161,219.26
  4. Step 4: Simplify right side
    275,933.89x = 61,390,722,778.91
  5. Step 5: Solve for x
    x = 61,390,722,778.91/275,933.89
  6. Step 6: Final answer
    x = 222,483.45

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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.