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Finding the Fourth Proportional to 394,269.54, 591,280.23 and 127,968.54

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Solution

The fourth proportional to 394,269.54, 591,280.23 and 127,968.54 is: 191,912.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,269.54 : 591,280.23 = 127,968.54 : x
  2. Step 2: Convert to fraction form
    394,269.54/591,280.23 = 127,968.54/x
  3. Step 3: Cross multiply
    394,269.54x = 591,280.23 × 127,968.54
  4. Step 4: Simplify right side
    394,269.54x = 75,665,267,763.96
  5. Step 5: Solve for x
    x = 75,665,267,763.96/394,269.54
  6. Step 6: Final answer
    x = 191,912.54

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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.