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Finding the Fourth Proportional to 444.81, 667.27 and 136.71

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Solution

The fourth proportional to 444.81, 667.27 and 136.71 is: 205.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.81 : 667.27 = 136.71 : x
  2. Step 2: Convert to fraction form
    444.81/667.27 = 136.71/x
  3. Step 3: Cross multiply
    444.81x = 667.27 × 136.71
  4. Step 4: Simplify right side
    444.81x = 91,222.48
  5. Step 5: Solve for x
    x = 91,222.48/444.81
  6. Step 6: Final answer
    x = 205.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.