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Finding the Fourth Proportional to 635.15, 952.64 and 269.89

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Solution

The fourth proportional to 635.15, 952.64 and 269.89 is: 404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.15 : 952.64 = 269.89 : x
  2. Step 2: Convert to fraction form
    635.15/952.64 = 269.89/x
  3. Step 3: Cross multiply
    635.15x = 952.64 × 269.89
  4. Step 4: Simplify right side
    635.15x = 257,108.01
  5. Step 5: Solve for x
    x = 257,108.01/635.15
  6. Step 6: Final answer
    x = 404.80

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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.