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Finding the Fourth Proportional to 246.20, 340.22 and 187.88

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Solution

The fourth proportional to 246.20, 340.22 and 187.88 is: 259.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.20 : 340.22 = 187.88 : x
  2. Step 2: Convert to fraction form
    246.20/340.22 = 187.88/x
  3. Step 3: Cross multiply
    246.20x = 340.22 × 187.88
  4. Step 4: Simplify right side
    246.20x = 63,920.53
  5. Step 5: Solve for x
    x = 63,920.53/246.20
  6. Step 6: Final answer
    x = 259.63

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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.