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Finding the Fourth Proportional to 247,408.82, 371,137.53 and 69,917.18

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Solution

The fourth proportional to 247,408.82, 371,137.53 and 69,917.18 is: 104,882.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,408.82 : 371,137.53 = 69,917.18 : x
  2. Step 2: Convert to fraction form
    247,408.82/371,137.53 = 69,917.18/x
  3. Step 3: Cross multiply
    247,408.82x = 371,137.53 × 69,917.18
  4. Step 4: Simplify right side
    247,408.82x = 25,948,889,489.77
  5. Step 5: Solve for x
    x = 25,948,889,489.77/247,408.82
  6. Step 6: Final answer
    x = 104,882.64

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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.