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Finding the Third Proportional to 98,460 and 215,981

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Solution

The third proportional to 98,460 and 215,981 is: 473,774.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,460 : 215,981 = 215,981 : x
  2. Step 2: Convert to fraction form
    98,460/215,981 = 215,981/x
  3. Step 3: Cross multiply
    98,460x = 215,981 × 215,981
  4. Step 4: Simplify right side
    98,460x = 46,647,792,361
  5. Step 5: Solve for x
    x = 46,647,792,361/98,460
  6. Step 6: Final answer
    x = 473,774.04

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.