Home / 331,380.87-457,226.21-195,404.15

Finding the Fourth Proportional to 331,380.87, 457,226.21 and 195,404.15

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Solution

The fourth proportional to 331,380.87, 457,226.21 and 195,404.15 is: 269,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,380.87 : 457,226.21 = 195,404.15 : x
  2. Step 2: Convert to fraction form
    331,380.87/457,226.21 = 195,404.15/x
  3. Step 3: Cross multiply
    331,380.87x = 457,226.21 × 195,404.15
  4. Step 4: Simplify right side
    331,380.87x = 89,343,895,659.62
  5. Step 5: Solve for x
    x = 89,343,895,659.62/331,380.87
  6. Step 6: Final answer
    x = 269,610.90

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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.