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Finding the Fourth Proportional to 275,198.58, 379,777.92 and 166,287.81

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Solution

The fourth proportional to 275,198.58, 379,777.92 and 166,287.81 is: 229,479.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,198.58 : 379,777.92 = 166,287.81 : x
  2. Step 2: Convert to fraction form
    275,198.58/379,777.92 = 166,287.81/x
  3. Step 3: Cross multiply
    275,198.58x = 379,777.92 × 166,287.81
  4. Step 4: Simplify right side
    275,198.58x = 63,152,438,603.16
  5. Step 5: Solve for x
    x = 63,152,438,603.16/275,198.58
  6. Step 6: Final answer
    x = 229,479.52

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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.