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Finding the Fourth Proportional to 303,577.80, 454,200.30 and 198,601.80

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Solution

The fourth proportional to 303,577.80, 454,200.30 and 198,601.80 is: 297,139.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,577.80 : 454,200.30 = 198,601.80 : x
  2. Step 2: Convert to fraction form
    303,577.80/454,200.30 = 198,601.80/x
  3. Step 3: Cross multiply
    303,577.80x = 454,200.30 × 198,601.80
  4. Step 4: Simplify right side
    303,577.80x = 90,204,997,140.54
  5. Step 5: Solve for x
    x = 90,204,997,140.54/303,577.80
  6. Step 6: Final answer
    x = 297,139.64

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Why These Related Problems?

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