Home / 327,813.53-491,516.64-138,176.33

Finding the Fourth Proportional to 327,813.53, 491,516.64 and 138,176.33

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Solution

The fourth proportional to 327,813.53, 491,516.64 and 138,176.33 is: 207,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,813.53 : 491,516.64 = 138,176.33 : x
  2. Step 2: Convert to fraction form
    327,813.53/491,516.64 = 138,176.33/x
  3. Step 3: Cross multiply
    327,813.53x = 491,516.64 × 138,176.33
  4. Step 4: Simplify right side
    327,813.53x = 67,915,962,991.55
  5. Step 5: Solve for x
    x = 67,915,962,991.55/327,813.53
  6. Step 6: Final answer
    x = 207,178.65

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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.