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Finding the Fourth Proportional to 461.36, 636.43 and 336.85

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Solution

The fourth proportional to 461.36, 636.43 and 336.85 is: 464.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.36 : 636.43 = 336.85 : x
  2. Step 2: Convert to fraction form
    461.36/636.43 = 336.85/x
  3. Step 3: Cross multiply
    461.36x = 636.43 × 336.85
  4. Step 4: Simplify right side
    461.36x = 214,381.45
  5. Step 5: Solve for x
    x = 214,381.45/461.36
  6. Step 6: Final answer
    x = 464.67

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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.