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Finding the Fourth Proportional to 303,414.20, 455,121.30 and 163,446.20

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Solution

The fourth proportional to 303,414.20, 455,121.30 and 163,446.20 is: 245,169.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,414.20 : 455,121.30 = 163,446.20 : x
  2. Step 2: Convert to fraction form
    303,414.20/455,121.30 = 163,446.20/x
  3. Step 3: Cross multiply
    303,414.20x = 455,121.30 × 163,446.20
  4. Step 4: Simplify right side
    303,414.20x = 74,387,847,024.06
  5. Step 5: Solve for x
    x = 74,387,847,024.06/303,414.20
  6. Step 6: Final answer
    x = 245,169.30

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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.