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Finding the Fourth Proportional to 589.28, 813.19 and 353.33

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Solution

The fourth proportional to 589.28, 813.19 and 353.33 is: 487.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.28 : 813.19 = 353.33 : x
  2. Step 2: Convert to fraction form
    589.28/813.19 = 353.33/x
  3. Step 3: Cross multiply
    589.28x = 813.19 × 353.33
  4. Step 4: Simplify right side
    589.28x = 287,324.42
  5. Step 5: Solve for x
    x = 287,324.42/589.28
  6. Step 6: Final answer
    x = 487.59

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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.