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Finding the Fourth Proportional to 444.72, 665.10 and 335.40

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Solution

The fourth proportional to 444.72, 665.10 and 335.40 is: 501.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.72 : 665.10 = 335.40 : x
  2. Step 2: Convert to fraction form
    444.72/665.10 = 335.40/x
  3. Step 3: Cross multiply
    444.72x = 665.10 × 335.40
  4. Step 4: Simplify right side
    444.72x = 223,074.54
  5. Step 5: Solve for x
    x = 223,074.54/444.72
  6. Step 6: Final answer
    x = 501.61

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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.