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Finding the Fourth Proportional to 265.05, 396.78 and 233.05

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Solution

The fourth proportional to 265.05, 396.78 and 233.05 is: 348.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.05 : 396.78 = 233.05 : x
  2. Step 2: Convert to fraction form
    265.05/396.78 = 233.05/x
  3. Step 3: Cross multiply
    265.05x = 396.78 × 233.05
  4. Step 4: Simplify right side
    265.05x = 92,468.41
  5. Step 5: Solve for x
    x = 92,468.41/265.05
  6. Step 6: Final answer
    x = 348.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.