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Finding the Third Proportional to 275,220.75 and 455,497.50

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Solution

The third proportional to 275,220.75 and 455,497.50 is: 753,860.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,220.75 : 455,497.50 = 455,497.50 : x
  2. Step 2: Convert to fraction form
    275,220.75/455,497.50 = 455,497.50/x
  3. Step 3: Cross multiply
    275,220.75x = 455,497.50 × 455,497.50
  4. Step 4: Simplify right side
    275,220.75x = 207,477,972,506.25
  5. Step 5: Solve for x
    x = 207,477,972,506.25/275,220.75
  6. Step 6: Final answer
    x = 753,860.21

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.