Home / 327,717.76-491,767.70-138,166.52

Finding the Fourth Proportional to 327,717.76, 491,767.70 and 138,166.52

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Solution

The fourth proportional to 327,717.76, 491,767.70 and 138,166.52 is: 207,330.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,717.76 : 491,767.70 = 138,166.52 : x
  2. Step 2: Convert to fraction form
    327,717.76/491,767.70 = 138,166.52/x
  3. Step 3: Cross multiply
    327,717.76x = 491,767.70 × 138,166.52
  4. Step 4: Simplify right side
    327,717.76x = 67,945,831,757.40
  5. Step 5: Solve for x
    x = 67,945,831,757.40/327,717.76
  6. Step 6: Final answer
    x = 207,330.33

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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.