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Finding the Fourth Proportional to 246.79, 340.55 and 136.27

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Solution

The fourth proportional to 246.79, 340.55 and 136.27 is: 188.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.79 : 340.55 = 136.27 : x
  2. Step 2: Convert to fraction form
    246.79/340.55 = 136.27/x
  3. Step 3: Cross multiply
    246.79x = 340.55 × 136.27
  4. Step 4: Simplify right side
    246.79x = 46,407.29
  5. Step 5: Solve for x
    x = 46,407.29/246.79
  6. Step 6: Final answer
    x = 188.04

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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.