Home / 412,022.80-617,976.60-131,568.40

Finding the Fourth Proportional to 412,022.80, 617,976.60 and 131,568.40

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Solution

The fourth proportional to 412,022.80, 617,976.60 and 131,568.40 is: 197,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,022.80 : 617,976.60 = 131,568.40 : x
  2. Step 2: Convert to fraction form
    412,022.80/617,976.60 = 131,568.40/x
  3. Step 3: Cross multiply
    412,022.80x = 617,976.60 × 131,568.40
  4. Step 4: Simplify right side
    412,022.80x = 81,306,192,499.44
  5. Step 5: Solve for x
    x = 81,306,192,499.44/412,022.80
  6. Step 6: Final answer
    x = 197,334.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.