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Finding the Fourth Proportional to 694.33, 958.03 and 395.51

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Solution

The fourth proportional to 694.33, 958.03 and 395.51 is: 545.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.33 : 958.03 = 395.51 : x
  2. Step 2: Convert to fraction form
    694.33/958.03 = 395.51/x
  3. Step 3: Cross multiply
    694.33x = 958.03 × 395.51
  4. Step 4: Simplify right side
    694.33x = 378,910.45
  5. Step 5: Solve for x
    x = 378,910.45/694.33
  6. Step 6: Final answer
    x = 545.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.