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Finding the Fourth Proportional to 883.40, 1,324.22 and 363.78

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Solution

The fourth proportional to 883.40, 1,324.22 and 363.78 is: 545.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.40 : 1,324.22 = 363.78 : x
  2. Step 2: Convert to fraction form
    883.40/1,324.22 = 363.78/x
  3. Step 3: Cross multiply
    883.40x = 1,324.22 × 363.78
  4. Step 4: Simplify right side
    883.40x = 481,722.93
  5. Step 5: Solve for x
    x = 481,722.93/883.40
  6. Step 6: Final answer
    x = 545.31

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1.5x scale

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.