Home / 327,121.94-490,682.31-102,499.58

Finding the Fourth Proportional to 327,121.94, 490,682.31 and 102,499.58

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Solution

The fourth proportional to 327,121.94, 490,682.31 and 102,499.58 is: 153,749.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,121.94 : 490,682.31 = 102,499.58 : x
  2. Step 2: Convert to fraction form
    327,121.94/490,682.31 = 102,499.58/x
  3. Step 3: Cross multiply
    327,121.94x = 490,682.31 × 102,499.58
  4. Step 4: Simplify right side
    327,121.94x = 50,294,728,770.67
  5. Step 5: Solve for x
    x = 50,294,728,770.67/327,121.94
  6. Step 6: Final answer
    x = 153,749.17

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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.