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Finding the Fourth Proportional to 329.68, 454.82 and 236.64

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Solution

The fourth proportional to 329.68, 454.82 and 236.64 is: 326.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.68 : 454.82 = 236.64 : x
  2. Step 2: Convert to fraction form
    329.68/454.82 = 236.64/x
  3. Step 3: Cross multiply
    329.68x = 454.82 × 236.64
  4. Step 4: Simplify right side
    329.68x = 107,628.60
  5. Step 5: Solve for x
    x = 107,628.60/329.68
  6. Step 6: Final answer
    x = 326.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.