Home / 320,981.04-443,161.08-206,310.96

Finding the Fourth Proportional to 320,981.04, 443,161.08 and 206,310.96

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Solution

The fourth proportional to 320,981.04, 443,161.08 and 206,310.96 is: 284,842.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,981.04 : 443,161.08 = 206,310.96 : x
  2. Step 2: Convert to fraction form
    320,981.04/443,161.08 = 206,310.96/x
  3. Step 3: Cross multiply
    320,981.04x = 443,161.08 × 206,310.96
  4. Step 4: Simplify right side
    320,981.04x = 91,428,987,849.44
  5. Step 5: Solve for x
    x = 91,428,987,849.44/320,981.04
  6. Step 6: Final answer
    x = 284,842.33

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1.5x scale

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.