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Finding the Fourth Proportional to 422,883.18, 583,578.87 and 231,900.57

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Solution

The fourth proportional to 422,883.18, 583,578.87 and 231,900.57 is: 320,022.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,883.18 : 583,578.87 = 231,900.57 : x
  2. Step 2: Convert to fraction form
    422,883.18/583,578.87 = 231,900.57/x
  3. Step 3: Cross multiply
    422,883.18x = 583,578.87 × 231,900.57
  4. Step 4: Simplify right side
    422,883.18x = 135,332,272,592.96
  5. Step 5: Solve for x
    x = 135,332,272,592.96/422,883.18
  6. Step 6: Final answer
    x = 320,022.83

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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.