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Finding the Fourth Proportional to 383.54, 572.00 and 326.13

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Solution

The fourth proportional to 383.54, 572.00 and 326.13 is: 486.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.54 : 572.00 = 326.13 : x
  2. Step 2: Convert to fraction form
    383.54/572.00 = 326.13/x
  3. Step 3: Cross multiply
    383.54x = 572.00 × 326.13
  4. Step 4: Simplify right side
    383.54x = 186,544.73
  5. Step 5: Solve for x
    x = 186,544.73/383.54
  6. Step 6: Final answer
    x = 486.37

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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.