Home / 378,734.40-522,842.85-235,540.58

Finding the Fourth Proportional to 378,734.40, 522,842.85 and 235,540.58

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Solution

The fourth proportional to 378,734.40, 522,842.85 and 235,540.58 is: 325,163.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,734.40 : 522,842.85 = 235,540.58 : x
  2. Step 2: Convert to fraction form
    378,734.40/522,842.85 = 235,540.58/x
  3. Step 3: Cross multiply
    378,734.40x = 522,842.85 × 235,540.58
  4. Step 4: Simplify right side
    378,734.40x = 123,150,708,137.85
  5. Step 5: Solve for x
    x = 123,150,708,137.85/378,734.40
  6. Step 6: Final answer
    x = 325,163.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.