Home / 274,613.26-378,643.44-220,121.86

Finding the Fourth Proportional to 274,613.26, 378,643.44 and 220,121.86

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Solution

The fourth proportional to 274,613.26, 378,643.44 and 220,121.86 is: 303,509.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,613.26 : 378,643.44 = 220,121.86 : x
  2. Step 2: Convert to fraction form
    274,613.26/378,643.44 = 220,121.86/x
  3. Step 3: Cross multiply
    274,613.26x = 378,643.44 × 220,121.86
  4. Step 4: Simplify right side
    274,613.26x = 83,347,698,289.60
  5. Step 5: Solve for x
    x = 83,347,698,289.60/274,613.26
  6. Step 6: Final answer
    x = 303,509.37

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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.