Home / 285,947.64-394,709.90-195,238.52

Finding the Fourth Proportional to 285,947.64, 394,709.90 and 195,238.52

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Solution

The fourth proportional to 285,947.64, 394,709.90 and 195,238.52 is: 269,498.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,947.64 : 394,709.90 = 195,238.52 : x
  2. Step 2: Convert to fraction form
    285,947.64/394,709.90 = 195,238.52/x
  3. Step 3: Cross multiply
    285,947.64x = 394,709.90 × 195,238.52
  4. Step 4: Simplify right side
    285,947.64x = 77,062,576,705.35
  5. Step 5: Solve for x
    x = 77,062,576,705.35/285,947.64
  6. Step 6: Final answer
    x = 269,498.91

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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.