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Finding the Fourth Proportional to 351.68, 485.53 and 246.73

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Solution

The fourth proportional to 351.68, 485.53 and 246.73 is: 340.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.68 : 485.53 = 246.73 : x
  2. Step 2: Convert to fraction form
    351.68/485.53 = 246.73/x
  3. Step 3: Cross multiply
    351.68x = 485.53 × 246.73
  4. Step 4: Simplify right side
    351.68x = 119,794.82
  5. Step 5: Solve for x
    x = 119,794.82/351.68
  6. Step 6: Final answer
    x = 340.64

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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.