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Finding the Fourth Proportional to 371.73, 555.49 and 324.84

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Solution

The fourth proportional to 371.73, 555.49 and 324.84 is: 485.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.73 : 555.49 = 324.84 : x
  2. Step 2: Convert to fraction form
    371.73/555.49 = 324.84/x
  3. Step 3: Cross multiply
    371.73x = 555.49 × 324.84
  4. Step 4: Simplify right side
    371.73x = 180,445.37
  5. Step 5: Solve for x
    x = 180,445.37/371.73
  6. Step 6: Final answer
    x = 485.42

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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.