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Finding the Fourth Proportional to 335.76, 465.60 and 326.88

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Solution

The fourth proportional to 335.76, 465.60 and 326.88 is: 453.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.76 : 465.60 = 326.88 : x
  2. Step 2: Convert to fraction form
    335.76/465.60 = 326.88/x
  3. Step 3: Cross multiply
    335.76x = 465.60 × 326.88
  4. Step 4: Simplify right side
    335.76x = 152,195.33
  5. Step 5: Solve for x
    x = 152,195.33/335.76
  6. Step 6: Final answer
    x = 453.29

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.