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Finding the Fourth Proportional to 481.71, 665.08 and 324.52

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Solution

The fourth proportional to 481.71, 665.08 and 324.52 is: 448.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.71 : 665.08 = 324.52 : x
  2. Step 2: Convert to fraction form
    481.71/665.08 = 324.52/x
  3. Step 3: Cross multiply
    481.71x = 665.08 × 324.52
  4. Step 4: Simplify right side
    481.71x = 215,831.76
  5. Step 5: Solve for x
    x = 215,831.76/481.71
  6. Step 6: Final answer
    x = 448.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.