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Finding the Fourth Proportional to 248.04, 372.12 and 111.09

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Solution

The fourth proportional to 248.04, 372.12 and 111.09 is: 166.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.04 : 372.12 = 111.09 : x
  2. Step 2: Convert to fraction form
    248.04/372.12 = 111.09/x
  3. Step 3: Cross multiply
    248.04x = 372.12 × 111.09
  4. Step 4: Simplify right side
    248.04x = 41,338.81
  5. Step 5: Solve for x
    x = 41,338.81/248.04
  6. Step 6: Final answer
    x = 166.66

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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.