Home / 327,112.16-490,723.52-102,428.28

Finding the Fourth Proportional to 327,112.16, 490,723.52 and 102,428.28

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Solution

The fourth proportional to 327,112.16, 490,723.52 and 102,428.28 is: 153,659.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,112.16 : 490,723.52 = 102,428.28 : x
  2. Step 2: Convert to fraction form
    327,112.16/490,723.52 = 102,428.28/x
  3. Step 3: Cross multiply
    327,112.16x = 490,723.52 × 102,428.28
  4. Step 4: Simplify right side
    327,112.16x = 50,263,965,597.00
  5. Step 5: Solve for x
    x = 50,263,965,597.00/327,112.16
  6. Step 6: Final answer
    x = 153,659.73

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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.