Home / 285,629.58-394,169.13-158,305.28

Finding the Fourth Proportional to 285,629.58, 394,169.13 and 158,305.28

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Solution

The fourth proportional to 285,629.58, 394,169.13 and 158,305.28 is: 218,461.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,629.58 : 394,169.13 = 158,305.28 : x
  2. Step 2: Convert to fraction form
    285,629.58/394,169.13 = 158,305.28/x
  3. Step 3: Cross multiply
    285,629.58x = 394,169.13 × 158,305.28
  4. Step 4: Simplify right side
    285,629.58x = 62,399,052,521.16
  5. Step 5: Solve for x
    x = 62,399,052,521.16/285,629.58
  6. Step 6: Final answer
    x = 218,461.45

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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.