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Finding the Fourth Proportional to 247,375.64, 371,078.90 and 69,896.28

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Solution

The fourth proportional to 247,375.64, 371,078.90 and 69,896.28 is: 104,848.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,375.64 : 371,078.90 = 69,896.28 : x
  2. Step 2: Convert to fraction form
    247,375.64/371,078.90 = 69,896.28/x
  3. Step 3: Cross multiply
    247,375.64x = 371,078.90 × 69,896.28
  4. Step 4: Simplify right side
    247,375.64x = 25,937,034,696.49
  5. Step 5: Solve for x
    x = 25,937,034,696.49/247,375.64
  6. Step 6: Final answer
    x = 104,848.78

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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.