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Finding the Third Proportional to 101,218.50 and 214,890.50

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Solution

The third proportional to 101,218.50 and 214,890.50 is: 456,220.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,218.50 : 214,890.50 = 214,890.50 : x
  2. Step 2: Convert to fraction form
    101,218.50/214,890.50 = 214,890.50/x
  3. Step 3: Cross multiply
    101,218.50x = 214,890.50 × 214,890.50
  4. Step 4: Simplify right side
    101,218.50x = 46,177,926,990.25
  5. Step 5: Solve for x
    x = 46,177,926,990.25/101,218.50
  6. Step 6: Final answer
    x = 456,220.23

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.