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Finding the Fourth Proportional to 275.51, 379.91 and 182.23

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Solution

The fourth proportional to 275.51, 379.91 and 182.23 is: 251.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.51 : 379.91 = 182.23 : x
  2. Step 2: Convert to fraction form
    275.51/379.91 = 182.23/x
  3. Step 3: Cross multiply
    275.51x = 379.91 × 182.23
  4. Step 4: Simplify right side
    275.51x = 69,230.51
  5. Step 5: Solve for x
    x = 69,230.51/275.51
  6. Step 6: Final answer
    x = 251.28

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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.