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Finding the Fourth Proportional to 444.49, 666.74 and 136.34

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Solution

The fourth proportional to 444.49, 666.74 and 136.34 is: 204.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.49 : 666.74 = 136.34 : x
  2. Step 2: Convert to fraction form
    444.49/666.74 = 136.34/x
  3. Step 3: Cross multiply
    444.49x = 666.74 × 136.34
  4. Step 4: Simplify right side
    444.49x = 90,902.33
  5. Step 5: Solve for x
    x = 90,902.33/444.49
  6. Step 6: Final answer
    x = 204.51

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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.