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Finding the Third Proportional to 98,316 and 209,736

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Solution

The third proportional to 98,316 and 209,736 is: 447,426.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,316 : 209,736 = 209,736 : x
  2. Step 2: Convert to fraction form
    98,316/209,736 = 209,736/x
  3. Step 3: Cross multiply
    98,316x = 209,736 × 209,736
  4. Step 4: Simplify right side
    98,316x = 43,989,189,696
  5. Step 5: Solve for x
    x = 43,989,189,696/98,316
  6. Step 6: Final answer
    x = 447,426.56

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.