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Finding the Fourth Proportional to 263,908.95, 395,860.08 and 64,229.78

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Solution

The fourth proportional to 263,908.95, 395,860.08 and 64,229.78 is: 96,343.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,908.95 : 395,860.08 = 64,229.78 : x
  2. Step 2: Convert to fraction form
    263,908.95/395,860.08 = 64,229.78/x
  3. Step 3: Cross multiply
    263,908.95x = 395,860.08 × 64,229.78
  4. Step 4: Simplify right side
    263,908.95x = 25,426,003,869.88
  5. Step 5: Solve for x
    x = 25,426,003,869.88/263,908.95
  6. Step 6: Final answer
    x = 96,343.85

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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.