Home / 285,917.73-394,613.79-158,634.33

Finding the Fourth Proportional to 285,917.73, 394,613.79 and 158,634.33

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Solution

The fourth proportional to 285,917.73, 394,613.79 and 158,634.33 is: 218,941.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,917.73 : 394,613.79 = 158,634.33 : x
  2. Step 2: Convert to fraction form
    285,917.73/394,613.79 = 158,634.33/x
  3. Step 3: Cross multiply
    285,917.73x = 394,613.79 × 158,634.33
  4. Step 4: Simplify right side
    285,917.73x = 62,599,294,185.41
  5. Step 5: Solve for x
    x = 62,599,294,185.41/285,917.73
  6. Step 6: Final answer
    x = 218,941.63

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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.