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Finding the Fourth Proportional to 281,504.70, 422,329.05 and 198,560.70

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Solution

The fourth proportional to 281,504.70, 422,329.05 and 198,560.70 is: 297,891.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,504.70 : 422,329.05 = 198,560.70 : x
  2. Step 2: Convert to fraction form
    281,504.70/422,329.05 = 198,560.70/x
  3. Step 3: Cross multiply
    281,504.70x = 422,329.05 × 198,560.70
  4. Step 4: Simplify right side
    281,504.70x = 83,857,951,798.34
  5. Step 5: Solve for x
    x = 83,857,951,798.34/281,504.70
  6. Step 6: Final answer
    x = 297,891.84

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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.