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Finding the Fourth Proportional to 505.32, 696.69 and 327.97

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Solution

The fourth proportional to 505.32, 696.69 and 327.97 is: 452.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    505.32 : 696.69 = 327.97 : x
  2. Step 2: Convert to fraction form
    505.32/696.69 = 327.97/x
  3. Step 3: Cross multiply
    505.32x = 696.69 × 327.97
  4. Step 4: Simplify right side
    505.32x = 228,493.42
  5. Step 5: Solve for x
    x = 228,493.42/505.32
  6. Step 6: Final answer
    x = 452.18

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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.