Home / 320,493.15-442,416.73-199,694.12

Finding the Fourth Proportional to 320,493.15, 442,416.73 and 199,694.12

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Solution

The fourth proportional to 320,493.15, 442,416.73 and 199,694.12 is: 275,662.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,493.15 : 442,416.73 = 199,694.12 : x
  2. Step 2: Convert to fraction form
    320,493.15/442,416.73 = 199,694.12/x
  3. Step 3: Cross multiply
    320,493.15x = 442,416.73 × 199,694.12
  4. Step 4: Simplify right side
    320,493.15x = 88,348,016,360.07
  5. Step 5: Solve for x
    x = 88,348,016,360.07/320,493.15
  6. Step 6: Final answer
    x = 275,662.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.