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Finding the Fourth Proportional to 325.26, 485.04 and 303.39

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Solution

The fourth proportional to 325.26, 485.04 and 303.39 is: 452.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.26 : 485.04 = 303.39 : x
  2. Step 2: Convert to fraction form
    325.26/485.04 = 303.39/x
  3. Step 3: Cross multiply
    325.26x = 485.04 × 303.39
  4. Step 4: Simplify right side
    325.26x = 147,156.29
  5. Step 5: Solve for x
    x = 147,156.29/325.26
  6. Step 6: Final answer
    x = 452.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.