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Finding the Fourth Proportional to 465.92, 699.48 and 394.23

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Solution

The fourth proportional to 465.92, 699.48 and 394.23 is: 591.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.92 : 699.48 = 394.23 : x
  2. Step 2: Convert to fraction form
    465.92/699.48 = 394.23/x
  3. Step 3: Cross multiply
    465.92x = 699.48 × 394.23
  4. Step 4: Simplify right side
    465.92x = 275,756.00
  5. Step 5: Solve for x
    x = 275,756.00/465.92
  6. Step 6: Final answer
    x = 591.85

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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.