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Finding the Fourth Proportional to 246.74, 340.85 and 192.18

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Solution

The fourth proportional to 246.74, 340.85 and 192.18 is: 265.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.74 : 340.85 = 192.18 : x
  2. Step 2: Convert to fraction form
    246.74/340.85 = 192.18/x
  3. Step 3: Cross multiply
    246.74x = 340.85 × 192.18
  4. Step 4: Simplify right side
    246.74x = 65,504.55
  5. Step 5: Solve for x
    x = 65,504.55/246.74
  6. Step 6: Final answer
    x = 265.48

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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.