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Finding the Fourth Proportional to 198,260, 273,563.52 and 112,218.56

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Solution

The fourth proportional to 198,260, 273,563.52 and 112,218.56 is: 154,841.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,260 : 273,563.52 = 112,218.56 : x
  2. Step 2: Convert to fraction form
    198,260/273,563.52 = 112,218.56/x
  3. Step 3: Cross multiply
    198,260x = 273,563.52 × 112,218.56
  4. Step 4: Simplify right side
    198,260x = 30,698,904,282.93
  5. Step 5: Solve for x
    x = 30,698,904,282.93/198,260
  6. Step 6: Final answer
    x = 154,841.64

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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.