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Finding the Fourth Proportional to 270.88, 373.75 and 154.44

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Solution

The fourth proportional to 270.88, 373.75 and 154.44 is: 213.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.88 : 373.75 = 154.44 : x
  2. Step 2: Convert to fraction form
    270.88/373.75 = 154.44/x
  3. Step 3: Cross multiply
    270.88x = 373.75 × 154.44
  4. Step 4: Simplify right side
    270.88x = 57,721.56
  5. Step 5: Solve for x
    x = 57,721.56/270.88
  6. Step 6: Final answer
    x = 213.09

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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.