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Finding the Fourth Proportional to 264.20, 395.51 and 236.39

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Solution

The fourth proportional to 264.20, 395.51 and 236.39 is: 353.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.20 : 395.51 = 236.39 : x
  2. Step 2: Convert to fraction form
    264.20/395.51 = 236.39/x
  3. Step 3: Cross multiply
    264.20x = 395.51 × 236.39
  4. Step 4: Simplify right side
    264.20x = 93,491.45
  5. Step 5: Solve for x
    x = 93,491.45/264.20
  6. Step 6: Final answer
    x = 353.87

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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.