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Finding the Fourth Proportional to 247,880.82, 371,818.26 and 90,107.94

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Solution

The fourth proportional to 247,880.82, 371,818.26 and 90,107.94 is: 135,160.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,880.82 : 371,818.26 = 90,107.94 : x
  2. Step 2: Convert to fraction form
    247,880.82/371,818.26 = 90,107.94/x
  3. Step 3: Cross multiply
    247,880.82x = 371,818.26 × 90,107.94
  4. Step 4: Simplify right side
    247,880.82x = 33,503,777,462.98
  5. Step 5: Solve for x
    x = 33,503,777,462.98/247,880.82
  6. Step 6: Final answer
    x = 135,160.83

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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.