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Finding the Fourth Proportional to 271,997.20, 407,650.20 and 131,453.20

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Solution

The fourth proportional to 271,997.20, 407,650.20 and 131,453.20 is: 197,012.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,997.20 : 407,650.20 = 131,453.20 : x
  2. Step 2: Convert to fraction form
    271,997.20/407,650.20 = 131,453.20/x
  3. Step 3: Cross multiply
    271,997.20x = 407,650.20 × 131,453.20
  4. Step 4: Simplify right side
    271,997.20x = 53,586,923,270.64
  5. Step 5: Solve for x
    x = 53,586,923,270.64/271,997.20
  6. Step 6: Final answer
    x = 197,012.78

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1.5x scale

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.