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Finding the Fourth Proportional to 635.39, 953.27 and 245.43

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Solution

The fourth proportional to 635.39, 953.27 and 245.43 is: 368.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.39 : 953.27 = 245.43 : x
  2. Step 2: Convert to fraction form
    635.39/953.27 = 245.43/x
  3. Step 3: Cross multiply
    635.39x = 953.27 × 245.43
  4. Step 4: Simplify right side
    635.39x = 233,960.75
  5. Step 5: Solve for x
    x = 233,960.75/635.39
  6. Step 6: Final answer
    x = 368.21

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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.