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Finding the Fourth Proportional to 246.85, 340.81 and 187.92

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Solution

The fourth proportional to 246.85, 340.81 and 187.92 is: 259.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.85 : 340.81 = 187.92 : x
  2. Step 2: Convert to fraction form
    246.85/340.81 = 187.92/x
  3. Step 3: Cross multiply
    246.85x = 340.81 × 187.92
  4. Step 4: Simplify right side
    246.85x = 64,044.55
  5. Step 5: Solve for x
    x = 64,044.55/246.85
  6. Step 6: Final answer
    x = 259.45

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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.