Home / 327,775.67-491,725.52-128,083.43

Finding the Fourth Proportional to 327,775.67, 491,725.52 and 128,083.43

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Solution

The fourth proportional to 327,775.67, 491,725.52 and 128,083.43 is: 192,149.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,775.67 : 491,725.52 = 128,083.43 : x
  2. Step 2: Convert to fraction form
    327,775.67/491,725.52 = 128,083.43/x
  3. Step 3: Cross multiply
    327,775.67x = 491,725.52 × 128,083.43
  4. Step 4: Simplify right side
    327,775.67x = 62,981,892,289.34
  5. Step 5: Solve for x
    x = 62,981,892,289.34/327,775.67
  6. Step 6: Final answer
    x = 192,149.38

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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.