Home / 381,511.31-526,540.46-228,556.04

Finding the Fourth Proportional to 381,511.31, 526,540.46 and 228,556.04

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Solution

The fourth proportional to 381,511.31, 526,540.46 and 228,556.04 is: 315,440.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,511.31 : 526,540.46 = 228,556.04 : x
  2. Step 2: Convert to fraction form
    381,511.31/526,540.46 = 228,556.04/x
  3. Step 3: Cross multiply
    381,511.31x = 526,540.46 × 228,556.04
  4. Step 4: Simplify right side
    381,511.31x = 120,343,998,661.90
  5. Step 5: Solve for x
    x = 120,343,998,661.90/381,511.31
  6. Step 6: Final answer
    x = 315,440.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.