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Finding the Fourth Proportional to 240,820.62, 361,231.77 and 80,891.97

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Solution

The fourth proportional to 240,820.62, 361,231.77 and 80,891.97 is: 121,338.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,820.62 : 361,231.77 = 80,891.97 : x
  2. Step 2: Convert to fraction form
    240,820.62/361,231.77 = 80,891.97/x
  3. Step 3: Cross multiply
    240,820.62x = 361,231.77 × 80,891.97
  4. Step 4: Simplify right side
    240,820.62x = 29,220,749,501.89
  5. Step 5: Solve for x
    x = 29,220,749,501.89/240,820.62
  6. Step 6: Final answer
    x = 121,338.24

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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.