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Finding the Fourth Proportional to 198,274, 273,623.88 and 108,855.76

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Solution

The fourth proportional to 198,274, 273,623.88 and 108,855.76 is: 150,224.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,274 : 273,623.88 = 108,855.76 : x
  2. Step 2: Convert to fraction form
    198,274/273,623.88 = 108,855.76/x
  3. Step 3: Cross multiply
    198,274x = 273,623.88 × 108,855.76
  4. Step 4: Simplify right side
    198,274x = 29,785,535,411.55
  5. Step 5: Solve for x
    x = 29,785,535,411.55/198,274
  6. Step 6: Final answer
    x = 150,224.11

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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.