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Finding the Fourth Proportional to 322,720.98, 445,348.61 and 179,477.94

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Solution

The fourth proportional to 322,720.98, 445,348.61 and 179,477.94 is: 247,676.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,720.98 : 445,348.61 = 179,477.94 : x
  2. Step 2: Convert to fraction form
    322,720.98/445,348.61 = 179,477.94/x
  3. Step 3: Cross multiply
    322,720.98x = 445,348.61 × 179,477.94
  4. Step 4: Simplify right side
    322,720.98x = 79,930,251,104.66
  5. Step 5: Solve for x
    x = 79,930,251,104.66/322,720.98
  6. Step 6: Final answer
    x = 247,676.03

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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.