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Finding the Fourth Proportional to 269,978.22, 404,978.40 and 92,607.21

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Solution

The fourth proportional to 269,978.22, 404,978.40 and 92,607.21 is: 138,914.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,978.22 : 404,978.40 = 92,607.21 : x
  2. Step 2: Convert to fraction form
    269,978.22/404,978.40 = 92,607.21/x
  3. Step 3: Cross multiply
    269,978.22x = 404,978.40 × 92,607.21
  4. Step 4: Simplify right side
    269,978.22x = 37,503,919,734.26
  5. Step 5: Solve for x
    x = 37,503,919,734.26/269,978.22
  6. Step 6: Final answer
    x = 138,914.61

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