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Finding the Fourth Proportional to 444.85, 666.21 and 353.25

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Solution

The fourth proportional to 444.85, 666.21 and 353.25 is: 529.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.85 : 666.21 = 353.25 : x
  2. Step 2: Convert to fraction form
    444.85/666.21 = 353.25/x
  3. Step 3: Cross multiply
    444.85x = 666.21 × 353.25
  4. Step 4: Simplify right side
    444.85x = 235,338.68
  5. Step 5: Solve for x
    x = 235,338.68/444.85
  6. Step 6: Final answer
    x = 529.03

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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.