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Finding the Fourth Proportional to 247,378.75, 371,067.21 and 89,570.30

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Solution

The fourth proportional to 247,378.75, 371,067.21 and 89,570.30 is: 134,355.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,378.75 : 371,067.21 = 89,570.30 : x
  2. Step 2: Convert to fraction form
    247,378.75/371,067.21 = 89,570.30/x
  3. Step 3: Cross multiply
    247,378.75x = 371,067.21 × 89,570.30
  4. Step 4: Simplify right side
    247,378.75x = 33,236,599,464.53
  5. Step 5: Solve for x
    x = 33,236,599,464.53/247,378.75
  6. Step 6: Final answer
    x = 134,355.11

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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.