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Finding the Fourth Proportional to 311,997.97, 467,998.32 and 98,766.93

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Solution

The fourth proportional to 311,997.97, 467,998.32 and 98,766.93 is: 148,150.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,997.97 : 467,998.32 = 98,766.93 : x
  2. Step 2: Convert to fraction form
    311,997.97/467,998.32 = 98,766.93/x
  3. Step 3: Cross multiply
    311,997.97x = 467,998.32 × 98,766.93
  4. Step 4: Simplify right side
    311,997.97x = 46,222,756,804.44
  5. Step 5: Solve for x
    x = 46,222,756,804.44/311,997.97
  6. Step 6: Final answer
    x = 148,150.83

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1.5x scale

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.