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Finding the Fourth Proportional to 247,769.75, 371,632.75 and 89,999.57

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Solution

The fourth proportional to 247,769.75, 371,632.75 and 89,999.57 is: 134,991.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,769.75 : 371,632.75 = 89,999.57 : x
  2. Step 2: Convert to fraction form
    247,769.75/371,632.75 = 89,999.57/x
  3. Step 3: Cross multiply
    247,769.75x = 371,632.75 × 89,999.57
  4. Step 4: Simplify right side
    247,769.75x = 33,446,786,480.32
  5. Step 5: Solve for x
    x = 33,446,786,480.32/247,769.75
  6. Step 6: Final answer
    x = 134,991.41

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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.