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Finding the Fourth Proportional to 444.48, 666.69 and 170.55

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Solution

The fourth proportional to 444.48, 666.69 and 170.55 is: 255.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.48 : 666.69 = 170.55 : x
  2. Step 2: Convert to fraction form
    444.48/666.69 = 170.55/x
  3. Step 3: Cross multiply
    444.48x = 666.69 × 170.55
  4. Step 4: Simplify right side
    444.48x = 113,703.98
  5. Step 5: Solve for x
    x = 113,703.98/444.48
  6. Step 6: Final answer
    x = 255.81

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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.