Home / 274,229.12-378,439.08-161,053.76

Finding the Fourth Proportional to 274,229.12, 378,439.08 and 161,053.76

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Solution

The fourth proportional to 274,229.12, 378,439.08 and 161,053.76 is: 222,255.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,229.12 : 378,439.08 = 161,053.76 : x
  2. Step 2: Convert to fraction form
    274,229.12/378,439.08 = 161,053.76/x
  3. Step 3: Cross multiply
    274,229.12x = 378,439.08 × 161,053.76
  4. Step 4: Simplify right side
    274,229.12x = 60,949,036,764.94
  5. Step 5: Solve for x
    x = 60,949,036,764.94/274,229.12
  6. Step 6: Final answer
    x = 222,255.89

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1.5x scale

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.