Home / 263,721.64-395,593.40-76,733.14

Finding the Fourth Proportional to 263,721.64, 395,593.40 and 76,733.14

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Solution

The fourth proportional to 263,721.64, 395,593.40 and 76,733.14 is: 115,102.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,721.64 : 395,593.40 = 76,733.14 : x
  2. Step 2: Convert to fraction form
    263,721.64/395,593.40 = 76,733.14/x
  3. Step 3: Cross multiply
    263,721.64x = 395,593.40 × 76,733.14
  4. Step 4: Simplify right side
    263,721.64x = 30,355,123,745.28
  5. Step 5: Solve for x
    x = 30,355,123,745.28/263,721.64
  6. Step 6: Final answer
    x = 115,102.89

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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.