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Finding the Fourth Proportional to 436.60, 603.04 and 326.57

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Solution

The fourth proportional to 436.60, 603.04 and 326.57 is: 451.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.60 : 603.04 = 326.57 : x
  2. Step 2: Convert to fraction form
    436.60/603.04 = 326.57/x
  3. Step 3: Cross multiply
    436.60x = 603.04 × 326.57
  4. Step 4: Simplify right side
    436.60x = 196,930.94
  5. Step 5: Solve for x
    x = 196,930.94/436.60
  6. Step 6: Final answer
    x = 451.06

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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.