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Finding the Fourth Proportional to 474.26, 654.08 and 326.84

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Solution

The fourth proportional to 474.26, 654.08 and 326.84 is: 450.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.26 : 654.08 = 326.84 : x
  2. Step 2: Convert to fraction form
    474.26/654.08 = 326.84/x
  3. Step 3: Cross multiply
    474.26x = 654.08 × 326.84
  4. Step 4: Simplify right side
    474.26x = 213,774.60
  5. Step 5: Solve for x
    x = 213,774.60/474.26
  6. Step 6: Final answer
    x = 450.76

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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.