Home / 275,269.83-378,734.75-223,122.18

Finding the Fourth Proportional to 275,269.83, 378,734.75 and 223,122.18

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Solution

The fourth proportional to 275,269.83, 378,734.75 and 223,122.18 is: 306,986.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,269.83 : 378,734.75 = 223,122.18 : x
  2. Step 2: Convert to fraction form
    275,269.83/378,734.75 = 223,122.18/x
  3. Step 3: Cross multiply
    275,269.83x = 378,734.75 × 223,122.18
  4. Step 4: Simplify right side
    275,269.83x = 84,504,123,984.28
  5. Step 5: Solve for x
    x = 84,504,123,984.28/275,269.83
  6. Step 6: Final answer
    x = 306,986.51

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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.