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Finding the Fourth Proportional to 444.55, 666.82 and 200.91

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Solution

The fourth proportional to 444.55, 666.82 and 200.91 is: 301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.55 : 666.82 = 200.91 : x
  2. Step 2: Convert to fraction form
    444.55/666.82 = 200.91/x
  3. Step 3: Cross multiply
    444.55x = 666.82 × 200.91
  4. Step 4: Simplify right side
    444.55x = 133,970.81
  5. Step 5: Solve for x
    x = 133,970.81/444.55
  6. Step 6: Final answer
    x = 301.36

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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.