Home / 285,559.12-394,049.91-158,231.98

Finding the Fourth Proportional to 285,559.12, 394,049.91 and 158,231.98

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Solution

The fourth proportional to 285,559.12, 394,049.91 and 158,231.98 is: 218,348.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,559.12 : 394,049.91 = 158,231.98 : x
  2. Step 2: Convert to fraction form
    285,559.12/394,049.91 = 158,231.98/x
  3. Step 3: Cross multiply
    285,559.12x = 394,049.91 × 158,231.98
  4. Step 4: Simplify right side
    285,559.12x = 62,351,297,478.12
  5. Step 5: Solve for x
    x = 62,351,297,478.12/285,559.12
  6. Step 6: Final answer
    x = 218,348.12

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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.