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Finding the Fourth Proportional to 327,661.63, 491,683.53 and 138,110.41

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Solution

The fourth proportional to 327,661.63, 491,683.53 and 138,110.41 is: 207,246.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,661.63 : 491,683.53 = 138,110.41 : x
  2. Step 2: Convert to fraction form
    327,661.63/491,683.53 = 138,110.41/x
  3. Step 3: Cross multiply
    327,661.63x = 491,683.53 × 138,110.41
  4. Step 4: Simplify right side
    327,661.63x = 67,906,613,918.55
  5. Step 5: Solve for x
    x = 67,906,613,918.55/327,661.63
  6. Step 6: Final answer
    x = 207,246.16

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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.