Home / 215,522.64-321,385.32-200,563.56

Finding the Fourth Proportional to 215,522.64, 321,385.32 and 200,563.56

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Solution

The fourth proportional to 215,522.64, 321,385.32 and 200,563.56 is: 299,078.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,522.64 : 321,385.32 = 200,563.56 : x
  2. Step 2: Convert to fraction form
    215,522.64/321,385.32 = 200,563.56/x
  3. Step 3: Cross multiply
    215,522.64x = 321,385.32 × 200,563.56
  4. Step 4: Simplify right side
    215,522.64x = 64,458,183,910.94
  5. Step 5: Solve for x
    x = 64,458,183,910.94/215,522.64
  6. Step 6: Final answer
    x = 299,078.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.