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Finding the Fourth Proportional to 322,729.10, 445,371.88 and 179,489.20

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Solution

The fourth proportional to 322,729.10, 445,371.88 and 179,489.20 is: 247,698.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,729.10 : 445,371.88 = 179,489.20 : x
  2. Step 2: Convert to fraction form
    322,729.10/445,371.88 = 179,489.20/x
  3. Step 3: Cross multiply
    322,729.10x = 445,371.88 × 179,489.20
  4. Step 4: Simplify right side
    322,729.10x = 79,939,442,443.70
  5. Step 5: Solve for x
    x = 79,939,442,443.70/322,729.10
  6. Step 6: Final answer
    x = 247,698.28

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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.