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Finding the Fourth Proportional to 422,082.70, 633,156.84 and 122,568.22

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Solution

The fourth proportional to 422,082.70, 633,156.84 and 122,568.22 is: 183,861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,082.70 : 633,156.84 = 122,568.22 : x
  2. Step 2: Convert to fraction form
    422,082.70/633,156.84 = 122,568.22/x
  3. Step 3: Cross multiply
    422,082.70x = 633,156.84 × 122,568.22
  4. Step 4: Simplify right side
    422,082.70x = 77,604,906,859.62
  5. Step 5: Solve for x
    x = 77,604,906,859.62/422,082.70
  6. Step 6: Final answer
    x = 183,861.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.