Home / 220,213.28-303,879.94-129,551.73

Finding the Fourth Proportional to 220,213.28, 303,879.94 and 129,551.73

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Solution

The fourth proportional to 220,213.28, 303,879.94 and 129,551.73 is: 178,772.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,213.28 : 303,879.94 = 129,551.73 : x
  2. Step 2: Convert to fraction form
    220,213.28/303,879.94 = 129,551.73/x
  3. Step 3: Cross multiply
    220,213.28x = 303,879.94 × 129,551.73
  4. Step 4: Simplify right side
    220,213.28x = 39,368,171,615.42
  5. Step 5: Solve for x
    x = 39,368,171,615.42/220,213.28
  6. Step 6: Final answer
    x = 178,772.92

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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.