Home / 285,540.01-394,044.91-158,215.61

Finding the Fourth Proportional to 285,540.01, 394,044.91 and 158,215.61

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Solution

The fourth proportional to 285,540.01, 394,044.91 and 158,215.61 is: 218,337.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,540.01 : 394,044.91 = 158,215.61 : x
  2. Step 2: Convert to fraction form
    285,540.01/394,044.91 = 158,215.61/x
  3. Step 3: Cross multiply
    285,540.01x = 394,044.91 × 158,215.61
  4. Step 4: Simplify right side
    285,540.01x = 62,344,056,392.62
  5. Step 5: Solve for x
    x = 62,344,056,392.62/285,540.01
  6. Step 6: Final answer
    x = 218,337.38

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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.