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Finding the Fourth Proportional to 136.00, 205.49 and 134.79

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Solution

The fourth proportional to 136.00, 205.49 and 134.79 is: 203.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.00 : 205.49 = 134.79 : x
  2. Step 2: Convert to fraction form
    136.00/205.49 = 134.79/x
  3. Step 3: Cross multiply
    136.00x = 205.49 × 134.79
  4. Step 4: Simplify right side
    136.00x = 27,697.38
  5. Step 5: Solve for x
    x = 27,697.38/136.00
  6. Step 6: Final answer
    x = 203.65

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.