Home / 285,853.22-394,467.50-158,540.66

Finding the Fourth Proportional to 285,853.22, 394,467.50 and 158,540.66

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Solution

The fourth proportional to 285,853.22, 394,467.50 and 158,540.66 is: 218,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,853.22 : 394,467.50 = 158,540.66 : x
  2. Step 2: Convert to fraction form
    285,853.22/394,467.50 = 158,540.66/x
  3. Step 3: Cross multiply
    285,853.22x = 394,467.50 × 158,540.66
  4. Step 4: Simplify right side
    285,853.22x = 62,539,137,798.55
  5. Step 5: Solve for x
    x = 62,539,137,798.55/285,853.22
  6. Step 6: Final answer
    x = 218,780.60

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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.