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Finding the Fourth Proportional to 325.26, 484.61 and 317.97

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Solution

The fourth proportional to 325.26, 484.61 and 317.97 is: 473.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.26 : 484.61 = 317.97 : x
  2. Step 2: Convert to fraction form
    325.26/484.61 = 317.97/x
  3. Step 3: Cross multiply
    325.26x = 484.61 × 317.97
  4. Step 4: Simplify right side
    325.26x = 154,089.85
  5. Step 5: Solve for x
    x = 154,089.85/325.26
  6. Step 6: Final answer
    x = 473.74

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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.