Home / 285,872.40-394,528.14-158,589

Finding the Fourth Proportional to 285,872.40, 394,528.14 and 158,589

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Solution

The fourth proportional to 285,872.40, 394,528.14 and 158,589 is: 218,866.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,872.40 : 394,528.14 = 158,589 : x
  2. Step 2: Convert to fraction form
    285,872.40/394,528.14 = 158,589/x
  3. Step 3: Cross multiply
    285,872.40x = 394,528.14 × 158,589
  4. Step 4: Simplify right side
    285,872.40x = 62,567,823,194.46
  5. Step 5: Solve for x
    x = 62,567,823,194.46/285,872.40
  6. Step 6: Final answer
    x = 218,866.26

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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.