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Finding the Fourth Proportional to 275,277.96, 379,853.01 and 154,394.10

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Solution

The fourth proportional to 275,277.96, 379,853.01 and 154,394.10 is: 213,046.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,277.96 : 379,853.01 = 154,394.10 : x
  2. Step 2: Convert to fraction form
    275,277.96/379,853.01 = 154,394.10/x
  3. Step 3: Cross multiply
    275,277.96x = 379,853.01 × 154,394.10
  4. Step 4: Simplify right side
    275,277.96x = 58,647,063,611.24
  5. Step 5: Solve for x
    x = 58,647,063,611.24/275,277.96
  6. Step 6: Final answer
    x = 213,046.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.