Home / 285,976.35-394,483.40-178,359.55

Finding the Fourth Proportional to 285,976.35, 394,483.40 and 178,359.55

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Solution

The fourth proportional to 285,976.35, 394,483.40 and 178,359.55 is: 246,033.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,976.35 : 394,483.40 = 178,359.55 : x
  2. Step 2: Convert to fraction form
    285,976.35/394,483.40 = 178,359.55/x
  3. Step 3: Cross multiply
    285,976.35x = 394,483.40 × 178,359.55
  4. Step 4: Simplify right side
    285,976.35x = 70,359,879,828.46
  5. Step 5: Solve for x
    x = 70,359,879,828.46/285,976.35
  6. Step 6: Final answer
    x = 246,033.91

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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.