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Finding the Fourth Proportional to 262,609.63, 361,638.57 and 228,138.63

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Solution

The fourth proportional to 262,609.63, 361,638.57 and 228,138.63 is: 314,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,609.63 : 361,638.57 = 228,138.63 : x
  2. Step 2: Convert to fraction form
    262,609.63/361,638.57 = 228,138.63/x
  3. Step 3: Cross multiply
    262,609.63x = 361,638.57 × 228,138.63
  4. Step 4: Simplify right side
    262,609.63x = 82,503,727,414.33
  5. Step 5: Solve for x
    x = 82,503,727,414.33/262,609.63
  6. Step 6: Final answer
    x = 314,168.71

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1.5x scale

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.