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Finding the Fourth Proportional to 883.48, 1,324.78 and 335.30

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Solution

The fourth proportional to 883.48, 1,324.78 and 335.30 is: 502.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.48 : 1,324.78 = 335.30 : x
  2. Step 2: Convert to fraction form
    883.48/1,324.78 = 335.30/x
  3. Step 3: Cross multiply
    883.48x = 1,324.78 × 335.30
  4. Step 4: Simplify right side
    883.48x = 444,198.73
  5. Step 5: Solve for x
    x = 444,198.73/883.48
  6. Step 6: Final answer
    x = 502.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.