Home / 327,148.80-490,723.20-186,921.60

Finding the Fourth Proportional to 327,148.80, 490,723.20 and 186,921.60

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Solution

The fourth proportional to 327,148.80, 490,723.20 and 186,921.60 is: 280,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,148.80 : 490,723.20 = 186,921.60 : x
  2. Step 2: Convert to fraction form
    327,148.80/490,723.20 = 186,921.60/x
  3. Step 3: Cross multiply
    327,148.80x = 490,723.20 × 186,921.60
  4. Step 4: Simplify right side
    327,148.80x = 91,726,765,701.12
  5. Step 5: Solve for x
    x = 91,726,765,701.12/327,148.80
  6. Step 6: Final answer
    x = 280,382.40

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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.