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Finding the Fourth Proportional to 327,196.50, 490,805.67 and 90,519.36

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Solution

The fourth proportional to 327,196.50, 490,805.67 and 90,519.36 is: 135,782.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,196.50 : 490,805.67 = 90,519.36 : x
  2. Step 2: Convert to fraction form
    327,196.50/490,805.67 = 90,519.36/x
  3. Step 3: Cross multiply
    327,196.50x = 490,805.67 × 90,519.36
  4. Step 4: Simplify right side
    327,196.50x = 44,427,415,132.77
  5. Step 5: Solve for x
    x = 44,427,415,132.77/327,196.50
  6. Step 6: Final answer
    x = 135,782.06

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.