Home / 285,747.12-394,331.04-158,419.92

Finding the Fourth Proportional to 285,747.12, 394,331.04 and 158,419.92

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Solution

The fourth proportional to 285,747.12, 394,331.04 and 158,419.92 is: 218,619.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,747.12 : 394,331.04 = 158,419.92 : x
  2. Step 2: Convert to fraction form
    285,747.12/394,331.04 = 158,419.92/x
  3. Step 3: Cross multiply
    285,747.12x = 394,331.04 × 158,419.92
  4. Step 4: Simplify right side
    285,747.12x = 62,469,891,810.32
  5. Step 5: Solve for x
    x = 62,469,891,810.32/285,747.12
  6. Step 6: Final answer
    x = 218,619.50

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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.