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Finding the Fourth Proportional to 263,881.88, 395,672.85 and 103,871.09

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Solution

The fourth proportional to 263,881.88, 395,672.85 and 103,871.09 is: 155,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,881.88 : 395,672.85 = 103,871.09 : x
  2. Step 2: Convert to fraction form
    263,881.88/395,672.85 = 103,871.09/x
  3. Step 3: Cross multiply
    263,881.88x = 395,672.85 × 103,871.09
  4. Step 4: Simplify right side
    263,881.88x = 41,098,968,234.54
  5. Step 5: Solve for x
    x = 41,098,968,234.54/263,881.88
  6. Step 6: Final answer
    x = 155,747.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.