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Finding the Fourth Proportional to 246.46, 339.42 and 211.23

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Solution

The fourth proportional to 246.46, 339.42 and 211.23 is: 290.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.46 : 339.42 = 211.23 : x
  2. Step 2: Convert to fraction form
    246.46/339.42 = 211.23/x
  3. Step 3: Cross multiply
    246.46x = 339.42 × 211.23
  4. Step 4: Simplify right side
    246.46x = 71,695.69
  5. Step 5: Solve for x
    x = 71,695.69/246.46
  6. Step 6: Final answer
    x = 290.90

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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.