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Finding the Fourth Proportional to 635.57, 953.45 and 343.16

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Solution

The fourth proportional to 635.57, 953.45 and 343.16 is: 514.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.57 : 953.45 = 343.16 : x
  2. Step 2: Convert to fraction form
    635.57/953.45 = 343.16/x
  3. Step 3: Cross multiply
    635.57x = 953.45 × 343.16
  4. Step 4: Simplify right side
    635.57x = 327,179.42
  5. Step 5: Solve for x
    x = 327,179.42/635.57
  6. Step 6: Final answer
    x = 514.79

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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.