Home / 325,042.05-487,375.58-100,342.38

Finding the Fourth Proportional to 325,042.05, 487,375.58 and 100,342.38

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Solution

The fourth proportional to 325,042.05, 487,375.58 and 100,342.38 is: 150,455.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,042.05 : 487,375.58 = 100,342.38 : x
  2. Step 2: Convert to fraction form
    325,042.05/487,375.58 = 100,342.38/x
  3. Step 3: Cross multiply
    325,042.05x = 487,375.58 × 100,342.38
  4. Step 4: Simplify right side
    325,042.05x = 48,904,425,651.08
  5. Step 5: Solve for x
    x = 48,904,425,651.08/325,042.05
  6. Step 6: Final answer
    x = 150,455.69

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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.