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Finding the Fourth Proportional to 270.92, 372.93 and 233.66

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Solution

The fourth proportional to 270.92, 372.93 and 233.66 is: 321.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.92 : 372.93 = 233.66 : x
  2. Step 2: Convert to fraction form
    270.92/372.93 = 233.66/x
  3. Step 3: Cross multiply
    270.92x = 372.93 × 233.66
  4. Step 4: Simplify right side
    270.92x = 87,138.82
  5. Step 5: Solve for x
    x = 87,138.82/270.92
  6. Step 6: Final answer
    x = 321.64

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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.