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Finding the Fourth Proportional to 355,906.86, 490,874.22 and 228,594.30

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Solution

The fourth proportional to 355,906.86, 490,874.22 and 228,594.30 is: 315,282.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,906.86 : 490,874.22 = 228,594.30 : x
  2. Step 2: Convert to fraction form
    355,906.86/490,874.22 = 228,594.30/x
  3. Step 3: Cross multiply
    355,906.86x = 490,874.22 × 228,594.30
  4. Step 4: Simplify right side
    355,906.86x = 112,211,048,708.95
  5. Step 5: Solve for x
    x = 112,211,048,708.95/355,906.86
  6. Step 6: Final answer
    x = 315,282.06

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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.