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Finding the Third Proportional to 385.07 and 517.01

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Solution

The third proportional to 385.07 and 517.01 is: 694.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    385.07 : 517.01 = 517.01 : x
  2. Step 2: Convert to fraction form
    385.07/517.01 = 517.01/x
  3. Step 3: Cross multiply
    385.07x = 517.01 × 517.01
  4. Step 4: Simplify right side
    385.07x = 267,297.08
  5. Step 5: Solve for x
    x = 267,297.08/385.07
  6. Step 6: Final answer
    x = 694.16

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.