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Finding the Fourth Proportional to 246.79, 340.57 and 136.26

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Solution

The fourth proportional to 246.79, 340.57 and 136.26 is: 188.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.79 : 340.57 = 136.26 : x
  2. Step 2: Convert to fraction form
    246.79/340.57 = 136.26/x
  3. Step 3: Cross multiply
    246.79x = 340.57 × 136.26
  4. Step 4: Simplify right side
    246.79x = 46,406.24
  5. Step 5: Solve for x
    x = 46,406.24/246.79
  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.