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Finding the Fourth Proportional to 299.21, 413.05 and 201.03

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Solution

The fourth proportional to 299.21, 413.05 and 201.03 is: 277.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.21 : 413.05 = 201.03 : x
  2. Step 2: Convert to fraction form
    299.21/413.05 = 201.03/x
  3. Step 3: Cross multiply
    299.21x = 413.05 × 201.03
  4. Step 4: Simplify right side
    299.21x = 83,035.44
  5. Step 5: Solve for x
    x = 83,035.44/299.21
  6. Step 6: Final answer
    x = 277.52

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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.