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Finding the Fourth Proportional to 247,769.70, 371,654.55 and 90,003.30

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Solution

The fourth proportional to 247,769.70, 371,654.55 and 90,003.30 is: 135,004.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,769.70 : 371,654.55 = 90,003.30 : x
  2. Step 2: Convert to fraction form
    247,769.70/371,654.55 = 90,003.30/x
  3. Step 3: Cross multiply
    247,769.70x = 371,654.55 × 90,003.30
  4. Step 4: Simplify right side
    247,769.70x = 33,450,135,960.02
  5. Step 5: Solve for x
    x = 33,450,135,960.02/247,769.70
  6. Step 6: Final answer
    x = 135,004.95

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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.