Home / 394,113.28-591,405.44-144,820.48

Finding the Fourth Proportional to 394,113.28, 591,405.44 and 144,820.48

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Solution

The fourth proportional to 394,113.28, 591,405.44 and 144,820.48 is: 217,317.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,113.28 : 591,405.44 = 144,820.48 : x
  2. Step 2: Convert to fraction form
    394,113.28/591,405.44 = 144,820.48/x
  3. Step 3: Cross multiply
    394,113.28x = 591,405.44 × 144,820.48
  4. Step 4: Simplify right side
    394,113.28x = 85,647,619,695.41
  5. Step 5: Solve for x
    x = 85,647,619,695.41/394,113.28
  6. Step 6: Final answer
    x = 217,317.26

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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.