Home / 327,683.41-491,716.15-138,132.16

Finding the Fourth Proportional to 327,683.41, 491,716.15 and 138,132.16

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Solution

The fourth proportional to 327,683.41, 491,716.15 and 138,132.16 is: 207,278.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,683.41 : 491,716.15 = 138,132.16 : x
  2. Step 2: Convert to fraction form
    327,683.41/491,716.15 = 138,132.16/x
  3. Step 3: Cross multiply
    327,683.41x = 491,716.15 × 138,132.16
  4. Step 4: Simplify right side
    327,683.41x = 67,921,812,331.76
  5. Step 5: Solve for x
    x = 67,921,812,331.76/327,683.41
  6. Step 6: Final answer
    x = 207,278.77

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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.