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Finding the Fourth Proportional to 461.50, 636.91 and 262.34

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Solution

The fourth proportional to 461.50, 636.91 and 262.34 is: 362.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.50 : 636.91 = 262.34 : x
  2. Step 2: Convert to fraction form
    461.50/636.91 = 262.34/x
  3. Step 3: Cross multiply
    461.50x = 636.91 × 262.34
  4. Step 4: Simplify right side
    461.50x = 167,086.99
  5. Step 5: Solve for x
    x = 167,086.99/461.50
  6. Step 6: Final answer
    x = 362.05

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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.