Home / 260,998.20-391,497.30-228,857.40

Finding the Fourth Proportional to 260,998.20, 391,497.30 and 228,857.40

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Solution

The fourth proportional to 260,998.20, 391,497.30 and 228,857.40 is: 343,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,998.20 : 391,497.30 = 228,857.40 : x
  2. Step 2: Convert to fraction form
    260,998.20/391,497.30 = 228,857.40/x
  3. Step 3: Cross multiply
    260,998.20x = 391,497.30 × 228,857.40
  4. Step 4: Simplify right side
    260,998.20x = 89,597,054,185.02
  5. Step 5: Solve for x
    x = 89,597,054,185.02/260,998.20
  6. Step 6: Final answer
    x = 343,286.10

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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.