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Finding the Fourth Proportional to 321,675.23, 482,514.67 and 85,015.41

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Solution

The fourth proportional to 321,675.23, 482,514.67 and 85,015.41 is: 127,523.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,675.23 : 482,514.67 = 85,015.41 : x
  2. Step 2: Convert to fraction form
    321,675.23/482,514.67 = 85,015.41/x
  3. Step 3: Cross multiply
    321,675.23x = 482,514.67 × 85,015.41
  4. Step 4: Simplify right side
    321,675.23x = 41,021,180,797.90
  5. Step 5: Solve for x
    x = 41,021,180,797.90/321,675.23
  6. Step 6: Final answer
    x = 127,523.59

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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.