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Finding the Fourth Proportional to 267.09, 400.23 and 198.29

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Solution

The fourth proportional to 267.09, 400.23 and 198.29 is: 297.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.09 : 400.23 = 198.29 : x
  2. Step 2: Convert to fraction form
    267.09/400.23 = 198.29/x
  3. Step 3: Cross multiply
    267.09x = 400.23 × 198.29
  4. Step 4: Simplify right side
    267.09x = 79,361.61
  5. Step 5: Solve for x
    x = 79,361.61/267.09
  6. Step 6: Final answer
    x = 297.13

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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.