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Finding the Fourth Proportional to 247,408.45, 371,066.20 and 69,914.27

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Solution

The fourth proportional to 247,408.45, 371,066.20 and 69,914.27 is: 104,858.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,408.45 : 371,066.20 = 69,914.27 : x
  2. Step 2: Convert to fraction form
    247,408.45/371,066.20 = 69,914.27/x
  3. Step 3: Cross multiply
    247,408.45x = 371,066.20 × 69,914.27
  4. Step 4: Simplify right side
    247,408.45x = 25,942,823,247.55
  5. Step 5: Solve for x
    x = 25,942,823,247.55/247,408.45
  6. Step 6: Final answer
    x = 104,858.28

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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.