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Finding the Fourth Proportional to 331,205.69, 496,816.73 and 120,843.63

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Solution

The fourth proportional to 331,205.69, 496,816.73 and 120,843.63 is: 181,268.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,205.69 : 496,816.73 = 120,843.63 : x
  2. Step 2: Convert to fraction form
    331,205.69/496,816.73 = 120,843.63/x
  3. Step 3: Cross multiply
    331,205.69x = 496,816.73 × 120,843.63
  4. Step 4: Simplify right side
    331,205.69x = 60,037,137,097.93
  5. Step 5: Solve for x
    x = 60,037,137,097.93/331,205.69
  6. Step 6: Final answer
    x = 181,268.44

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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.