Home / 263,629.47-395,444.11-105,857.88

Finding the Fourth Proportional to 263,629.47, 395,444.11 and 105,857.88

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Solution

The fourth proportional to 263,629.47, 395,444.11 and 105,857.88 is: 158,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,629.47 : 395,444.11 = 105,857.88 : x
  2. Step 2: Convert to fraction form
    263,629.47/395,444.11 = 105,857.88/x
  3. Step 3: Cross multiply
    263,629.47x = 395,444.11 × 105,857.88
  4. Step 4: Simplify right side
    263,629.47x = 41,860,875,143.09
  5. Step 5: Solve for x
    x = 41,860,875,143.09/263,629.47
  6. Step 6: Final answer
    x = 158,786.78

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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.