Home / 327,107.09-490,669.79-90,449.69

Finding the Fourth Proportional to 327,107.09, 490,669.79 and 90,449.69

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Solution

The fourth proportional to 327,107.09, 490,669.79 and 90,449.69 is: 135,677.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,107.09 : 490,669.79 = 90,449.69 : x
  2. Step 2: Convert to fraction form
    327,107.09/490,669.79 = 90,449.69/x
  3. Step 3: Cross multiply
    327,107.09x = 490,669.79 × 90,449.69
  4. Step 4: Simplify right side
    327,107.09x = 44,380,927,492.27
  5. Step 5: Solve for x
    x = 44,380,927,492.27/327,107.09
  6. Step 6: Final answer
    x = 135,677.06

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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.