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Finding the Fourth Proportional to 263,941.86, 395,872.69 and 86,444.94

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Solution

The fourth proportional to 263,941.86, 395,872.69 and 86,444.94 is: 129,654.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,941.86 : 395,872.69 = 86,444.94 : x
  2. Step 2: Convert to fraction form
    263,941.86/395,872.69 = 86,444.94/x
  3. Step 3: Cross multiply
    263,941.86x = 395,872.69 × 86,444.94
  4. Step 4: Simplify right side
    263,941.86x = 34,221,188,739.21
  5. Step 5: Solve for x
    x = 34,221,188,739.21/263,941.86
  6. Step 6: Final answer
    x = 129,654.27

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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.