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Finding the Fourth Proportional to 444.18, 666.27 and 392.34

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Solution

The fourth proportional to 444.18, 666.27 and 392.34 is: 588.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.18 : 666.27 = 392.34 : x
  2. Step 2: Convert to fraction form
    444.18/666.27 = 392.34/x
  3. Step 3: Cross multiply
    444.18x = 666.27 × 392.34
  4. Step 4: Simplify right side
    444.18x = 261,404.37
  5. Step 5: Solve for x
    x = 261,404.37/444.18
  6. Step 6: Final answer
    x = 588.51

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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.