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Finding the Fourth Proportional to 246.48, 340.40 and 200.31

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Solution

The fourth proportional to 246.48, 340.40 and 200.31 is: 276.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.48 : 340.40 = 200.31 : x
  2. Step 2: Convert to fraction form
    246.48/340.40 = 200.31/x
  3. Step 3: Cross multiply
    246.48x = 340.40 × 200.31
  4. Step 4: Simplify right side
    246.48x = 68,185.52
  5. Step 5: Solve for x
    x = 68,185.52/246.48
  6. Step 6: Final answer
    x = 276.64

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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.