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Finding the Third Proportional to 299,181.75 and 648,210.75

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Solution

The third proportional to 299,181.75 and 648,210.75 is: 1,404,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,181.75 : 648,210.75 = 648,210.75 : x
  2. Step 2: Convert to fraction form
    299,181.75/648,210.75 = 648,210.75/x
  3. Step 3: Cross multiply
    299,181.75x = 648,210.75 × 648,210.75
  4. Step 4: Simplify right side
    299,181.75x = 420,177,176,415.56
  5. Step 5: Solve for x
    x = 420,177,176,415.56/299,181.75
  6. Step 6: Final answer
    x = 1,404,421.15

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.