Home / 286,110.63-394,839.16-158,794.43

Finding the Fourth Proportional to 286,110.63, 394,839.16 and 158,794.43

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Solution

The fourth proportional to 286,110.63, 394,839.16 and 158,794.43 is: 219,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,110.63 : 394,839.16 = 158,794.43 : x
  2. Step 2: Convert to fraction form
    286,110.63/394,839.16 = 158,794.43/x
  3. Step 3: Cross multiply
    286,110.63x = 394,839.16 × 158,794.43
  4. Step 4: Simplify right side
    286,110.63x = 62,698,256,982.70
  5. Step 5: Solve for x
    x = 62,698,256,982.70/286,110.63
  6. Step 6: Final answer
    x = 219,139.91

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1.5x scale

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.