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Finding the Fourth Proportional to 331,154, 496,805.04 and 120,791.93

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Solution

The fourth proportional to 331,154, 496,805.04 and 120,791.93 is: 181,214.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,154 : 496,805.04 = 120,791.93 : x
  2. Step 2: Convert to fraction form
    331,154/496,805.04 = 120,791.93/x
  3. Step 3: Cross multiply
    331,154x = 496,805.04 × 120,791.93
  4. Step 4: Simplify right side
    331,154x = 60,010,039,615.33
  5. Step 5: Solve for x
    x = 60,010,039,615.33/331,154
  6. Step 6: Final answer
    x = 181,214.90

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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.