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Finding the Fourth Proportional to 255.16, 382.98 and 110.92

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Solution

The fourth proportional to 255.16, 382.98 and 110.92 is: 166.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.16 : 382.98 = 110.92 : x
  2. Step 2: Convert to fraction form
    255.16/382.98 = 110.92/x
  3. Step 3: Cross multiply
    255.16x = 382.98 × 110.92
  4. Step 4: Simplify right side
    255.16x = 42,480.14
  5. Step 5: Solve for x
    x = 42,480.14/255.16
  6. Step 6: Final answer
    x = 166.48

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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.