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Finding the Fourth Proportional to 246.89, 340.72 and 136.37

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Solution

The fourth proportional to 246.89, 340.72 and 136.37 is: 188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.89 : 340.72 = 136.37 : x
  2. Step 2: Convert to fraction form
    246.89/340.72 = 136.37/x
  3. Step 3: Cross multiply
    246.89x = 340.72 × 136.37
  4. Step 4: Simplify right side
    246.89x = 46,464.50
  5. Step 5: Solve for x
    x = 46,464.50/246.89
  6. Step 6: Final answer
    x = 188.20

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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.