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Finding the Fourth Proportional to 327,343.68, 490,330.20 and 263,804.04

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Solution

The fourth proportional to 327,343.68, 490,330.20 and 263,804.04 is: 395,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,343.68 : 490,330.20 = 263,804.04 : x
  2. Step 2: Convert to fraction form
    327,343.68/490,330.20 = 263,804.04/x
  3. Step 3: Cross multiply
    327,343.68x = 490,330.20 × 263,804.04
  4. Step 4: Simplify right side
    327,343.68x = 129,351,087,694.01
  5. Step 5: Solve for x
    x = 129,351,087,694.01/327,343.68
  6. Step 6: Final answer
    x = 395,153.77

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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.