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Finding the Third Proportional to 171,045 and 268,316

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Solution

The third proportional to 171,045 and 268,316 is: 420,903.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,045 : 268,316 = 268,316 : x
  2. Step 2: Convert to fraction form
    171,045/268,316 = 268,316/x
  3. Step 3: Cross multiply
    171,045x = 268,316 × 268,316
  4. Step 4: Simplify right side
    171,045x = 71,993,475,856
  5. Step 5: Solve for x
    x = 71,993,475,856/171,045
  6. Step 6: Final answer
    x = 420,903.71

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.