Home / 394,213.24-591,762.12-157,720.78

Finding the Fourth Proportional to 394,213.24, 591,762.12 and 157,720.78

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Solution

The fourth proportional to 394,213.24, 591,762.12 and 157,720.78 is: 236,758.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,213.24 : 591,762.12 = 157,720.78 : x
  2. Step 2: Convert to fraction form
    394,213.24/591,762.12 = 157,720.78/x
  3. Step 3: Cross multiply
    394,213.24x = 591,762.12 × 157,720.78
  4. Step 4: Simplify right side
    394,213.24x = 93,333,183,140.85
  5. Step 5: Solve for x
    x = 93,333,183,140.85/394,213.24
  6. Step 6: Final answer
    x = 236,758.11

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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.