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Finding the Fourth Proportional to 285,635.26, 394,176.98 and 158,310.96

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Solution

The fourth proportional to 285,635.26, 394,176.98 and 158,310.96 is: 218,469.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,635.26 : 394,176.98 = 158,310.96 : x
  2. Step 2: Convert to fraction form
    285,635.26/394,176.98 = 158,310.96/x
  3. Step 3: Cross multiply
    285,635.26x = 394,176.98 × 158,310.96
  4. Step 4: Simplify right side
    285,635.26x = 62,402,536,113.70
  5. Step 5: Solve for x
    x = 62,402,536,113.70/285,635.26
  6. Step 6: Final answer
    x = 218,469.30

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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.