Home / 263,943.12-395,950.32-76,953

Finding the Fourth Proportional to 263,943.12, 395,950.32 and 76,953

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Solution

The fourth proportional to 263,943.12, 395,950.32 and 76,953 is: 115,439.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,943.12 : 395,950.32 = 76,953 : x
  2. Step 2: Convert to fraction form
    263,943.12/395,950.32 = 76,953/x
  3. Step 3: Cross multiply
    263,943.12x = 395,950.32 × 76,953
  4. Step 4: Simplify right side
    263,943.12x = 30,469,564,974.96
  5. Step 5: Solve for x
    x = 30,469,564,974.96/263,943.12
  6. Step 6: Final answer
    x = 115,439.89

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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.