Home / 290,140.11-400,372.07-161,086.05

Finding the Fourth Proportional to 290,140.11, 400,372.07 and 161,086.05

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Solution

The fourth proportional to 290,140.11, 400,372.07 and 161,086.05 is: 222,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,140.11 : 400,372.07 = 161,086.05 : x
  2. Step 2: Convert to fraction form
    290,140.11/400,372.07 = 161,086.05/x
  3. Step 3: Cross multiply
    290,140.11x = 400,372.07 × 161,086.05
  4. Step 4: Simplify right side
    290,140.11x = 64,494,354,481.19
  5. Step 5: Solve for x
    x = 64,494,354,481.19/290,140.11
  6. Step 6: Final answer
    x = 222,286.93

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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.