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Finding the Fourth Proportional to 198,321.75, 273,684.02 and 108,897.75

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Solution

The fourth proportional to 198,321.75, 273,684.02 and 108,897.75 is: 150,278.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,321.75 : 273,684.02 = 108,897.75 : x
  2. Step 2: Convert to fraction form
    198,321.75/273,684.02 = 108,897.75/x
  3. Step 3: Cross multiply
    198,321.75x = 273,684.02 × 108,897.75
  4. Step 4: Simplify right side
    198,321.75x = 29,803,573,444.47
  5. Step 5: Solve for x
    x = 29,803,573,444.47/198,321.75
  6. Step 6: Final answer
    x = 150,278.90

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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.