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Finding the Fourth Proportional to 422,137.88, 582,550.39 and 228,545.55

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Solution

The fourth proportional to 422,137.88, 582,550.39 and 228,545.55 is: 315,392.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,137.88 : 582,550.39 = 228,545.55 : x
  2. Step 2: Convert to fraction form
    422,137.88/582,550.39 = 228,545.55/x
  3. Step 3: Cross multiply
    422,137.88x = 582,550.39 × 228,545.55
  4. Step 4: Simplify right side
    422,137.88x = 133,139,295,229.79
  5. Step 5: Solve for x
    x = 133,139,295,229.79/422,137.88
  6. Step 6: Final answer
    x = 315,392.92

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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.