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Finding the Fourth Proportional to 327,858.72, 491,745.00 and 103,220.33

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Solution

The fourth proportional to 327,858.72, 491,745.00 and 103,220.33 is: 154,816.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,858.72 : 491,745.00 = 103,220.33 : x
  2. Step 2: Convert to fraction form
    327,858.72/491,745.00 = 103,220.33/x
  3. Step 3: Cross multiply
    327,858.72x = 491,745.00 × 103,220.33
  4. Step 4: Simplify right side
    327,858.72x = 50,758,079,104.20
  5. Step 5: Solve for x
    x = 50,758,079,104.20/327,858.72
  6. Step 6: Final answer
    x = 154,816.93

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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.