Home / 263,735.63-395,669.06-76,747.13

Finding the Fourth Proportional to 263,735.63, 395,669.06 and 76,747.13

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Solution

The fourth proportional to 263,735.63, 395,669.06 and 76,747.13 is: 115,139.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,735.63 : 395,669.06 = 76,747.13 : x
  2. Step 2: Convert to fraction form
    263,735.63/395,669.06 = 76,747.13/x
  3. Step 3: Cross multiply
    263,735.63x = 395,669.06 × 76,747.13
  4. Step 4: Simplify right side
    263,735.63x = 30,366,462,422.72
  5. Step 5: Solve for x
    x = 30,366,462,422.72/263,735.63
  6. Step 6: Final answer
    x = 115,139.78

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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.