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Finding the Fourth Proportional to 436.96, 654.08 and 326.62

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Solution

The fourth proportional to 436.96, 654.08 and 326.62 is: 488.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.96 : 654.08 = 326.62 : x
  2. Step 2: Convert to fraction form
    436.96/654.08 = 326.62/x
  3. Step 3: Cross multiply
    436.96x = 654.08 × 326.62
  4. Step 4: Simplify right side
    436.96x = 213,639.08
  5. Step 5: Solve for x
    x = 213,639.08/436.96
  6. Step 6: Final answer
    x = 488.92

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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.