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Finding the Fourth Proportional to 198,060, 273,324.24 and 108,636

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Solution

The fourth proportional to 198,060, 273,324.24 and 108,636 is: 149,918.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,060 : 273,324.24 = 108,636 : x
  2. Step 2: Convert to fraction form
    198,060/273,324.24 = 108,636/x
  3. Step 3: Cross multiply
    198,060x = 273,324.24 × 108,636
  4. Step 4: Simplify right side
    198,060x = 29,692,852,136.64
  5. Step 5: Solve for x
    x = 29,692,852,136.64/198,060
  6. Step 6: Final answer
    x = 149,918.47

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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.