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Finding the Fourth Proportional to 293.65, 405.48 and 195.85

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Solution

The fourth proportional to 293.65, 405.48 and 195.85 is: 270.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.65 : 405.48 = 195.85 : x
  2. Step 2: Convert to fraction form
    293.65/405.48 = 195.85/x
  3. Step 3: Cross multiply
    293.65x = 405.48 × 195.85
  4. Step 4: Simplify right side
    293.65x = 79,413.26
  5. Step 5: Solve for x
    x = 79,413.26/293.65
  6. Step 6: Final answer
    x = 270.44

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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.