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Finding the Fourth Proportional to 321,204.41, 481,619.85 and 121,540.22

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Solution

The fourth proportional to 321,204.41, 481,619.85 and 121,540.22 is: 182,239.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,204.41 : 481,619.85 = 121,540.22 : x
  2. Step 2: Convert to fraction form
    321,204.41/481,619.85 = 121,540.22/x
  3. Step 3: Cross multiply
    321,204.41x = 481,619.85 × 121,540.22
  4. Step 4: Simplify right side
    321,204.41x = 58,536,182,525.37
  5. Step 5: Solve for x
    x = 58,536,182,525.37/321,204.41
  6. Step 6: Final answer
    x = 182,239.66

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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.