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Finding the Fourth Proportional to 336.33, 464.35 and 274.30

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Solution

The fourth proportional to 336.33, 464.35 and 274.30 is: 378.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.33 : 464.35 = 274.30 : x
  2. Step 2: Convert to fraction form
    336.33/464.35 = 274.30/x
  3. Step 3: Cross multiply
    336.33x = 464.35 × 274.30
  4. Step 4: Simplify right side
    336.33x = 127,371.21
  5. Step 5: Solve for x
    x = 127,371.21/336.33
  6. Step 6: Final answer
    x = 378.71

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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.