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Finding the Fourth Proportional to 351.63, 485.25 and 334.62

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Solution

The fourth proportional to 351.63, 485.25 and 334.62 is: 461.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.63 : 485.25 = 334.62 : x
  2. Step 2: Convert to fraction form
    351.63/485.25 = 334.62/x
  3. Step 3: Cross multiply
    351.63x = 485.25 × 334.62
  4. Step 4: Simplify right side
    351.63x = 162,374.36
  5. Step 5: Solve for x
    x = 162,374.36/351.63
  6. Step 6: Final answer
    x = 461.78

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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.