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Finding the Fourth Proportional to 422,750.28, 634,205.52 and 222,881.70

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Solution

The fourth proportional to 422,750.28, 634,205.52 and 222,881.70 is: 334,364.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,750.28 : 634,205.52 = 222,881.70 : x
  2. Step 2: Convert to fraction form
    422,750.28/634,205.52 = 222,881.70/x
  3. Step 3: Cross multiply
    422,750.28x = 634,205.52 × 222,881.70
  4. Step 4: Simplify right side
    422,750.28x = 141,352,804,446.98
  5. Step 5: Solve for x
    x = 141,352,804,446.98/422,750.28
  6. Step 6: Final answer
    x = 334,364.78

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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.