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Finding the Fourth Proportional to 247,751.40, 371,724.30 and 89,995.80

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Solution

The fourth proportional to 247,751.40, 371,724.30 and 89,995.80 is: 135,029.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,751.40 : 371,724.30 = 89,995.80 : x
  2. Step 2: Convert to fraction form
    247,751.40/371,724.30 = 89,995.80/x
  3. Step 3: Cross multiply
    247,751.40x = 371,724.30 × 89,995.80
  4. Step 4: Simplify right side
    247,751.40x = 33,453,625,757.94
  5. Step 5: Solve for x
    x = 33,453,625,757.94/247,751.40
  6. Step 6: Final answer
    x = 135,029.01

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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.