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Finding the Fourth Proportional to 392.53, 541.62 and 252.60

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Solution

The fourth proportional to 392.53, 541.62 and 252.60 is: 348.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    392.53 : 541.62 = 252.60 : x
  2. Step 2: Convert to fraction form
    392.53/541.62 = 252.60/x
  3. Step 3: Cross multiply
    392.53x = 541.62 × 252.60
  4. Step 4: Simplify right side
    392.53x = 136,813.21
  5. Step 5: Solve for x
    x = 136,813.21/392.53
  6. Step 6: Final answer
    x = 348.54

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Why These Related Problems?

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