Home / 320,864.11-443,001.37-206,186.94

Finding the Fourth Proportional to 320,864.11, 443,001.37 and 206,186.94

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Solution

The fourth proportional to 320,864.11, 443,001.37 and 206,186.94 is: 284,672.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,864.11 : 443,001.37 = 206,186.94 : x
  2. Step 2: Convert to fraction form
    320,864.11/443,001.37 = 206,186.94/x
  3. Step 3: Cross multiply
    320,864.11x = 443,001.37 × 206,186.94
  4. Step 4: Simplify right side
    320,864.11x = 91,341,096,380.64
  5. Step 5: Solve for x
    x = 91,341,096,380.64/320,864.11
  6. Step 6: Final answer
    x = 284,672.22

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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.