Home / 394,450.80-591,735.24-145,113.84

Finding the Fourth Proportional to 394,450.80, 591,735.24 and 145,113.84

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Solution

The fourth proportional to 394,450.80, 591,735.24 and 145,113.84 is: 217,692.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,450.80 : 591,735.24 = 145,113.84 : x
  2. Step 2: Convert to fraction form
    394,450.80/591,735.24 = 145,113.84/x
  3. Step 3: Cross multiply
    394,450.80x = 591,735.24 × 145,113.84
  4. Step 4: Simplify right side
    394,450.80x = 85,868,972,939.72
  5. Step 5: Solve for x
    x = 85,868,972,939.72/394,450.80
  6. Step 6: Final answer
    x = 217,692.48

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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.