Home / 327,879.48-491,554.02-138,217.38

Finding the Fourth Proportional to 327,879.48, 491,554.02 and 138,217.38

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Solution

The fourth proportional to 327,879.48, 491,554.02 and 138,217.38 is: 207,214.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,879.48 : 491,554.02 = 138,217.38 : x
  2. Step 2: Convert to fraction form
    327,879.48/491,554.02 = 138,217.38/x
  3. Step 3: Cross multiply
    327,879.48x = 491,554.02 × 138,217.38
  4. Step 4: Simplify right side
    327,879.48x = 67,941,308,772.87
  5. Step 5: Solve for x
    x = 67,941,308,772.87/327,879.48
  6. Step 6: Final answer
    x = 207,214.28

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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.