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Finding the Third Proportional to 97,391 and 209,578

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Solution

The third proportional to 97,391 and 209,578 is: 450,995.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,391 : 209,578 = 209,578 : x
  2. Step 2: Convert to fraction form
    97,391/209,578 = 209,578/x
  3. Step 3: Cross multiply
    97,391x = 209,578 × 209,578
  4. Step 4: Simplify right side
    97,391x = 43,922,938,084
  5. Step 5: Solve for x
    x = 43,922,938,084/97,391
  6. Step 6: Final answer
    x = 450,995.86

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.