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Finding the Fourth Proportional to 246.60, 368.21 and 217.48

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Solution

The fourth proportional to 246.60, 368.21 and 217.48 is: 324.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.60 : 368.21 = 217.48 : x
  2. Step 2: Convert to fraction form
    246.60/368.21 = 217.48/x
  3. Step 3: Cross multiply
    246.60x = 368.21 × 217.48
  4. Step 4: Simplify right side
    246.60x = 80,078.14
  5. Step 5: Solve for x
    x = 80,078.14/246.60
  6. Step 6: Final answer
    x = 324.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.