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Finding the Fourth Proportional to 354.44, 485.60 and 341.48

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Solution

The fourth proportional to 354.44, 485.60 and 341.48 is: 467.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.44 : 485.60 = 341.48 : x
  2. Step 2: Convert to fraction form
    354.44/485.60 = 341.48/x
  3. Step 3: Cross multiply
    354.44x = 485.60 × 341.48
  4. Step 4: Simplify right side
    354.44x = 165,822.69
  5. Step 5: Solve for x
    x = 165,822.69/354.44
  6. Step 6: Final answer
    x = 467.84

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.