Home / 327,998.10-492,191.55-215,999.40

Finding the Fourth Proportional to 327,998.10, 492,191.55 and 215,999.40

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Solution

The fourth proportional to 327,998.10, 492,191.55 and 215,999.40 is: 324,127.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,998.10 : 492,191.55 = 215,999.40 : x
  2. Step 2: Convert to fraction form
    327,998.10/492,191.55 = 215,999.40/x
  3. Step 3: Cross multiply
    327,998.10x = 492,191.55 × 215,999.40
  4. Step 4: Simplify right side
    327,998.10x = 106,313,079,485.07
  5. Step 5: Solve for x
    x = 106,313,079,485.07/327,998.10
  6. Step 6: Final answer
    x = 324,127.12

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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.