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Finding the Fourth Proportional to 270, 372.74 and 192.51

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Solution

The fourth proportional to 270, 372.74 and 192.51 is: 265.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    270 : 372.74 = 192.51 : x
  2. Step 2: Convert to fraction form
    270/372.74 = 192.51/x
  3. Step 3: Cross multiply
    270x = 372.74 × 192.51
  4. Step 4: Simplify right side
    270x = 71,755.21
  5. Step 5: Solve for x
    x = 71,755.21/270
  6. Step 6: Final answer
    x = 265.76

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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.