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Finding the Fourth Proportional to 275.64, 413.24 and 92.94

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Solution

The fourth proportional to 275.64, 413.24 and 92.94 is: 139.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.64 : 413.24 = 92.94 : x
  2. Step 2: Convert to fraction form
    275.64/413.24 = 92.94/x
  3. Step 3: Cross multiply
    275.64x = 413.24 × 92.94
  4. Step 4: Simplify right side
    275.64x = 38,404.51
  5. Step 5: Solve for x
    x = 38,404.51/275.64
  6. Step 6: Final answer
    x = 139.33

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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.