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Finding the Fourth Proportional to 271,245.60, 406,479.60 and 199,609.20

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Solution

The fourth proportional to 271,245.60, 406,479.60 and 199,609.20 is: 299,127.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,245.60 : 406,479.60 = 199,609.20 : x
  2. Step 2: Convert to fraction form
    271,245.60/406,479.60 = 199,609.20/x
  3. Step 3: Cross multiply
    271,245.60x = 406,479.60 × 199,609.20
  4. Step 4: Simplify right side
    271,245.60x = 81,137,067,772.32
  5. Step 5: Solve for x
    x = 81,137,067,772.32/271,245.60
  6. Step 6: Final answer
    x = 299,127.68

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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.