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Finding the Fourth Proportional to 635.67, 953.17 and 392.37

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Solution

The fourth proportional to 635.67, 953.17 and 392.37 is: 588.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.67 : 953.17 = 392.37 : x
  2. Step 2: Convert to fraction form
    635.67/953.17 = 392.37/x
  3. Step 3: Cross multiply
    635.67x = 953.17 × 392.37
  4. Step 4: Simplify right side
    635.67x = 373,993.44
  5. Step 5: Solve for x
    x = 373,993.44/635.67
  6. Step 6: Final answer
    x = 588.34

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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.