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Finding the Fourth Proportional to 198,600.33, 297,806.64 and 72,152.40

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Solution

The fourth proportional to 198,600.33, 297,806.64 and 72,152.40 is: 108,194.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,600.33 : 297,806.64 = 72,152.40 : x
  2. Step 2: Convert to fraction form
    198,600.33/297,806.64 = 72,152.40/x
  3. Step 3: Cross multiply
    198,600.33x = 297,806.64 × 72,152.40
  4. Step 4: Simplify right side
    198,600.33x = 21,487,463,811.94
  5. Step 5: Solve for x
    x = 21,487,463,811.94/198,600.33
  6. Step 6: Final answer
    x = 108,194.50

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.