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Finding the Fourth Proportional to 295.92, 408.78 and 262.98

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Solution

The fourth proportional to 295.92, 408.78 and 262.98 is: 363.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.92 : 408.78 = 262.98 : x
  2. Step 2: Convert to fraction form
    295.92/408.78 = 262.98/x
  3. Step 3: Cross multiply
    295.92x = 408.78 × 262.98
  4. Step 4: Simplify right side
    295.92x = 107,500.96
  5. Step 5: Solve for x
    x = 107,500.96/295.92
  6. Step 6: Final answer
    x = 363.28

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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.