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Finding the Fourth Proportional to 277.51, 382.74 and 166.96

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Solution

The fourth proportional to 277.51, 382.74 and 166.96 is: 230.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.51 : 382.74 = 166.96 : x
  2. Step 2: Convert to fraction form
    277.51/382.74 = 166.96/x
  3. Step 3: Cross multiply
    277.51x = 382.74 × 166.96
  4. Step 4: Simplify right side
    277.51x = 63,902.27
  5. Step 5: Solve for x
    x = 63,902.27/277.51
  6. Step 6: Final answer
    x = 230.27

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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.