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Finding the Third Proportional to 201,645.75 and 309,518.25

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Solution

The third proportional to 201,645.75 and 309,518.25 is: 475,098.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,645.75 : 309,518.25 = 309,518.25 : x
  2. Step 2: Convert to fraction form
    201,645.75/309,518.25 = 309,518.25/x
  3. Step 3: Cross multiply
    201,645.75x = 309,518.25 × 309,518.25
  4. Step 4: Simplify right side
    201,645.75x = 95,801,547,083.06
  5. Step 5: Solve for x
    x = 95,801,547,083.06/201,645.75
  6. Step 6: Final answer
    x = 475,098.27

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.