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Finding the Fourth Proportional to 422,912.26, 634,485.48 and 195,277.35

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Solution

The fourth proportional to 422,912.26, 634,485.48 and 195,277.35 is: 292,970.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,912.26 : 634,485.48 = 195,277.35 : x
  2. Step 2: Convert to fraction form
    422,912.26/634,485.48 = 195,277.35/x
  3. Step 3: Cross multiply
    422,912.26x = 634,485.48 × 195,277.35
  4. Step 4: Simplify right side
    422,912.26x = 123,900,643,147.88
  5. Step 5: Solve for x
    x = 123,900,643,147.88/422,912.26
  6. Step 6: Final answer
    x = 292,970.09

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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.