Home / 285,562.24-394,078.50-158,240.56

Finding the Fourth Proportional to 285,562.24, 394,078.50 and 158,240.56

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Solution

The fourth proportional to 285,562.24, 394,078.50 and 158,240.56 is: 218,373.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,562.24 : 394,078.50 = 158,240.56 : x
  2. Step 2: Convert to fraction form
    285,562.24/394,078.50 = 158,240.56/x
  3. Step 3: Cross multiply
    285,562.24x = 394,078.50 × 158,240.56
  4. Step 4: Simplify right side
    285,562.24x = 62,359,202,523.96
  5. Step 5: Solve for x
    x = 62,359,202,523.96/285,562.24
  6. Step 6: Final answer
    x = 218,373.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.