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Finding the Third Proportional to 98,508 and 210,840

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Solution

The third proportional to 98,508 and 210,840 is: 451,267.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,508 : 210,840 = 210,840 : x
  2. Step 2: Convert to fraction form
    98,508/210,840 = 210,840/x
  3. Step 3: Cross multiply
    98,508x = 210,840 × 210,840
  4. Step 4: Simplify right side
    98,508x = 44,453,505,600
  5. Step 5: Solve for x
    x = 44,453,505,600/98,508
  6. Step 6: Final answer
    x = 451,267.97

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.