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Finding the Fourth Proportional to 271,919.40, 407,879.10 and 246,987.60

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Solution

The fourth proportional to 271,919.40, 407,879.10 and 246,987.60 is: 370,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,919.40 : 407,879.10 = 246,987.60 : x
  2. Step 2: Convert to fraction form
    271,919.40/407,879.10 = 246,987.60/x
  3. Step 3: Cross multiply
    271,919.40x = 407,879.10 × 246,987.60
  4. Step 4: Simplify right side
    271,919.40x = 100,741,079,999.16
  5. Step 5: Solve for x
    x = 100,741,079,999.16/271,919.40
  6. Step 6: Final answer
    x = 370,481.40

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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.