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Finding the Fourth Proportional to 322,959.30, 445,221.94 and 227,168.70

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Solution

The fourth proportional to 322,959.30, 445,221.94 and 227,168.70 is: 313,167.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,959.30 : 445,221.94 = 227,168.70 : x
  2. Step 2: Convert to fraction form
    322,959.30/445,221.94 = 227,168.70/x
  3. Step 3: Cross multiply
    322,959.30x = 445,221.94 × 227,168.70
  4. Step 4: Simplify right side
    322,959.30x = 101,140,490,653.00
  5. Step 5: Solve for x
    x = 101,140,490,653.00/322,959.30
  6. Step 6: Final answer
    x = 313,167.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.