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Finding the Fourth Proportional to 271.51, 374.43 and 243.97

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Solution

The fourth proportional to 271.51, 374.43 and 243.97 is: 336.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.51 : 374.43 = 243.97 : x
  2. Step 2: Convert to fraction form
    271.51/374.43 = 243.97/x
  3. Step 3: Cross multiply
    271.51x = 374.43 × 243.97
  4. Step 4: Simplify right side
    271.51x = 91,349.69
  5. Step 5: Solve for x
    x = 91,349.69/271.51
  6. Step 6: Final answer
    x = 336.45

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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.