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Finding the Fourth Proportional to 246.71, 339.77 and 211.48

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Solution

The fourth proportional to 246.71, 339.77 and 211.48 is: 291.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.71 : 339.77 = 211.48 : x
  2. Step 2: Convert to fraction form
    246.71/339.77 = 211.48/x
  3. Step 3: Cross multiply
    246.71x = 339.77 × 211.48
  4. Step 4: Simplify right side
    246.71x = 71,851.80
  5. Step 5: Solve for x
    x = 71,851.80/246.71
  6. Step 6: Final answer
    x = 291.24

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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.