Home / 285,786.54-394,379.55-158,461.02

Finding the Fourth Proportional to 285,786.54, 394,379.55 and 158,461.02

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Solution

The fourth proportional to 285,786.54, 394,379.55 and 158,461.02 is: 218,672.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,786.54 : 394,379.55 = 158,461.02 : x
  2. Step 2: Convert to fraction form
    285,786.54/394,379.55 = 158,461.02/x
  3. Step 3: Cross multiply
    285,786.54x = 394,379.55 × 158,461.02
  4. Step 4: Simplify right side
    285,786.54x = 62,493,785,760.14
  5. Step 5: Solve for x
    x = 62,493,785,760.14/285,786.54
  6. Step 6: Final answer
    x = 218,672.95

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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.