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Finding the Fourth Proportional to 285.04, 393.22 and 168.54

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Solution

The fourth proportional to 285.04, 393.22 and 168.54 is: 232.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    285.04 : 393.22 = 168.54 : x
  2. Step 2: Convert to fraction form
    285.04/393.22 = 168.54/x
  3. Step 3: Cross multiply
    285.04x = 393.22 × 168.54
  4. Step 4: Simplify right side
    285.04x = 66,273.30
  5. Step 5: Solve for x
    x = 66,273.30/285.04
  6. Step 6: Final answer
    x = 232.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.