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Finding the Fourth Proportional to 285,889.96, 394,269.98 and 178,469.96

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Solution

The fourth proportional to 285,889.96, 394,269.98 and 178,469.96 is: 246,127.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,889.96 : 394,269.98 = 178,469.96 : x
  2. Step 2: Convert to fraction form
    285,889.96/394,269.98 = 178,469.96/x
  3. Step 3: Cross multiply
    285,889.96x = 394,269.98 × 178,469.96
  4. Step 4: Simplify right side
    285,889.96x = 70,365,347,559.80
  5. Step 5: Solve for x
    x = 70,365,347,559.80/285,889.96
  6. Step 6: Final answer
    x = 246,127.38

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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.