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Finding the Fourth Proportional to 271,257.60, 406,924.80 and 84,249.60

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Solution

The fourth proportional to 271,257.60, 406,924.80 and 84,249.60 is: 126,386.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,257.60 : 406,924.80 = 84,249.60 : x
  2. Step 2: Convert to fraction form
    271,257.60/406,924.80 = 84,249.60/x
  3. Step 3: Cross multiply
    271,257.60x = 406,924.80 × 84,249.60
  4. Step 4: Simplify right side
    271,257.60x = 34,283,251,630.08
  5. Step 5: Solve for x
    x = 34,283,251,630.08/271,257.60
  6. Step 6: Final answer
    x = 126,386.33

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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.