Home / 221,183.91-305,137.71-140,568.21

Finding the Fourth Proportional to 221,183.91, 305,137.71 and 140,568.21

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Solution

The fourth proportional to 221,183.91, 305,137.71 and 140,568.21 is: 193,923.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,183.91 : 305,137.71 = 140,568.21 : x
  2. Step 2: Convert to fraction form
    221,183.91/305,137.71 = 140,568.21/x
  3. Step 3: Cross multiply
    221,183.91x = 305,137.71 × 140,568.21
  4. Step 4: Simplify right side
    221,183.91x = 42,892,661,698.20
  5. Step 5: Solve for x
    x = 42,892,661,698.20/221,183.91
  6. Step 6: Final answer
    x = 193,923.06

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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.