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Finding the Fourth Proportional to 444.25, 666.60 and 336.70

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Solution

The fourth proportional to 444.25, 666.60 and 336.70 is: 505.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.25 : 666.60 = 336.70 : x
  2. Step 2: Convert to fraction form
    444.25/666.60 = 336.70/x
  3. Step 3: Cross multiply
    444.25x = 666.60 × 336.70
  4. Step 4: Simplify right side
    444.25x = 224,439.20
  5. Step 5: Solve for x
    x = 224,439.20/444.25
  6. Step 6: Final answer
    x = 505.21

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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.