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Finding the Third Proportional to 216,873 and 333,765

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Solution

The third proportional to 216,873 and 333,765 is: 513,660.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,873 : 333,765 = 333,765 : x
  2. Step 2: Convert to fraction form
    216,873/333,765 = 333,765/x
  3. Step 3: Cross multiply
    216,873x = 333,765 × 333,765
  4. Step 4: Simplify right side
    216,873x = 111,399,075,225
  5. Step 5: Solve for x
    x = 111,399,075,225/216,873
  6. Step 6: Final answer
    x = 513,660.42

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.