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Finding the Fourth Proportional to 378.54, 566.46 and 240.96

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Solution

The fourth proportional to 378.54, 566.46 and 240.96 is: 360.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.54 : 566.46 = 240.96 : x
  2. Step 2: Convert to fraction form
    378.54/566.46 = 240.96/x
  3. Step 3: Cross multiply
    378.54x = 566.46 × 240.96
  4. Step 4: Simplify right side
    378.54x = 136,494.20
  5. Step 5: Solve for x
    x = 136,494.20/378.54
  6. Step 6: Final answer
    x = 360.58

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Why These Related Problems?

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