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Finding the Fourth Proportional to 444.25, 665.12 and 235.54

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Solution

The fourth proportional to 444.25, 665.12 and 235.54 is: 352.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.25 : 665.12 = 235.54 : x
  2. Step 2: Convert to fraction form
    444.25/665.12 = 235.54/x
  3. Step 3: Cross multiply
    444.25x = 665.12 × 235.54
  4. Step 4: Simplify right side
    444.25x = 156,661.19
  5. Step 5: Solve for x
    x = 156,661.19/444.25
  6. Step 6: Final answer
    x = 352.64

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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.