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Finding the Fourth Proportional to 277.23, 380.09 and 272.98

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Solution

The fourth proportional to 277.23, 380.09 and 272.98 is: 374.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.23 : 380.09 = 272.98 : x
  2. Step 2: Convert to fraction form
    277.23/380.09 = 272.98/x
  3. Step 3: Cross multiply
    277.23x = 380.09 × 272.98
  4. Step 4: Simplify right side
    277.23x = 103,756.97
  5. Step 5: Solve for x
    x = 103,756.97/277.23
  6. Step 6: Final answer
    x = 374.26

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.