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Finding the Fourth Proportional to 464.10, 635.96 and 447.10

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Solution

The fourth proportional to 464.10, 635.96 and 447.10 is: 612.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.10 : 635.96 = 447.10 : x
  2. Step 2: Convert to fraction form
    464.10/635.96 = 447.10/x
  3. Step 3: Cross multiply
    464.10x = 635.96 × 447.10
  4. Step 4: Simplify right side
    464.10x = 284,337.72
  5. Step 5: Solve for x
    x = 284,337.72/464.10
  6. Step 6: Final answer
    x = 612.66

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.