Home / 274,612.26-378,642.06-220,120.86

Finding the Fourth Proportional to 274,612.26, 378,642.06 and 220,120.86

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Solution

The fourth proportional to 274,612.26, 378,642.06 and 220,120.86 is: 303,507.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,612.26 : 378,642.06 = 220,120.86 : x
  2. Step 2: Convert to fraction form
    274,612.26/378,642.06 = 220,120.86/x
  3. Step 3: Cross multiply
    274,612.26x = 378,642.06 × 220,120.86
  4. Step 4: Simplify right side
    274,612.26x = 83,347,015,879.37
  5. Step 5: Solve for x
    x = 83,347,015,879.37/274,612.26
  6. Step 6: Final answer
    x = 303,507.99

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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.