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Finding the Fourth Proportional to 271,377.02, 406,778.26 and 91,291.01

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Solution

The fourth proportional to 271,377.02, 406,778.26 and 91,291.01 is: 136,839.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,377.02 : 406,778.26 = 91,291.01 : x
  2. Step 2: Convert to fraction form
    271,377.02/406,778.26 = 91,291.01/x
  3. Step 3: Cross multiply
    271,377.02x = 406,778.26 × 91,291.01
  4. Step 4: Simplify right side
    271,377.02x = 37,135,198,201.44
  5. Step 5: Solve for x
    x = 37,135,198,201.44/271,377.02
  6. Step 6: Final answer
    x = 136,839.88

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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.