Home / 331,811.10-497,716.65-82,493.10

Finding the Fourth Proportional to 331,811.10, 497,716.65 and 82,493.10

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Solution

The fourth proportional to 331,811.10, 497,716.65 and 82,493.10 is: 123,739.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,811.10 : 497,716.65 = 82,493.10 : x
  2. Step 2: Convert to fraction form
    331,811.10/497,716.65 = 82,493.10/x
  3. Step 3: Cross multiply
    331,811.10x = 497,716.65 × 82,493.10
  4. Step 4: Simplify right side
    331,811.10x = 41,058,189,380.12
  5. Step 5: Solve for x
    x = 41,058,189,380.12/331,811.10
  6. Step 6: Final answer
    x = 123,739.65

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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.