Home / 260,731.80-391,572.90-228,072.60

Finding the Fourth Proportional to 260,731.80, 391,572.90 and 228,072.60

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Solution

The fourth proportional to 260,731.80, 391,572.90 and 228,072.60 is: 342,524.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,731.80 : 391,572.90 = 228,072.60 : x
  2. Step 2: Convert to fraction form
    260,731.80/391,572.90 = 228,072.60/x
  3. Step 3: Cross multiply
    260,731.80x = 391,572.90 × 228,072.60
  4. Step 4: Simplify right side
    260,731.80x = 89,307,049,392.54
  5. Step 5: Solve for x
    x = 89,307,049,392.54/260,731.80
  6. Step 6: Final answer
    x = 342,524.58

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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.