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Finding the Fourth Proportional to 221,449.40, 333,048.90 and 198,704.60

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Solution

The fourth proportional to 221,449.40, 333,048.90 and 198,704.60 is: 298,841.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,449.40 : 333,048.90 = 198,704.60 : x
  2. Step 2: Convert to fraction form
    221,449.40/333,048.90 = 198,704.60/x
  3. Step 3: Cross multiply
    221,449.40x = 333,048.90 × 198,704.60
  4. Step 4: Simplify right side
    221,449.40x = 66,178,348,454.94
  5. Step 5: Solve for x
    x = 66,178,348,454.94/221,449.40
  6. Step 6: Final answer
    x = 298,841.85

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1.5x scale

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.