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Finding the Fourth Proportional to 271,216.89, 406,676.29 and 215,414.37

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Solution

The fourth proportional to 271,216.89, 406,676.29 and 215,414.37 is: 323,003.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,216.89 : 406,676.29 = 215,414.37 : x
  2. Step 2: Convert to fraction form
    271,216.89/406,676.29 = 215,414.37/x
  3. Step 3: Cross multiply
    271,216.89x = 406,676.29 × 215,414.37
  4. Step 4: Simplify right side
    271,216.89x = 87,603,916,804.29
  5. Step 5: Solve for x
    x = 87,603,916,804.29/271,216.89
  6. Step 6: Final answer
    x = 323,003.18

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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.