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Finding the Fourth Proportional to 285,886.53, 394,517.39 and 158,559.39

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Solution

The fourth proportional to 285,886.53, 394,517.39 and 158,559.39 is: 218,808.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,886.53 : 394,517.39 = 158,559.39 : x
  2. Step 2: Convert to fraction form
    285,886.53/394,517.39 = 158,559.39/x
  3. Step 3: Cross multiply
    285,886.53x = 394,517.39 × 158,559.39
  4. Step 4: Simplify right side
    285,886.53x = 62,554,435,910.00
  5. Step 5: Solve for x
    x = 62,554,435,910.00/285,886.53
  6. Step 6: Final answer
    x = 218,808.62

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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.