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Finding the Fourth Proportional to 321,323.10, 443,425.93 and 178,092.39

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Solution

The fourth proportional to 321,323.10, 443,425.93 and 178,092.39 is: 245,767.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,323.10 : 443,425.93 = 178,092.39 : x
  2. Step 2: Convert to fraction form
    321,323.10/443,425.93 = 178,092.39/x
  3. Step 3: Cross multiply
    321,323.10x = 443,425.93 × 178,092.39
  4. Step 4: Simplify right side
    321,323.10x = 78,970,783,216.44
  5. Step 5: Solve for x
    x = 78,970,783,216.44/321,323.10
  6. Step 6: Final answer
    x = 245,767.53

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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.