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Finding the Third Proportional to 144,972 and 216,783

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Solution

The third proportional to 144,972 and 216,783 is: 324,165.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,972 : 216,783 = 216,783 : x
  2. Step 2: Convert to fraction form
    144,972/216,783 = 216,783/x
  3. Step 3: Cross multiply
    144,972x = 216,783 × 216,783
  4. Step 4: Simplify right side
    144,972x = 46,994,869,089
  5. Step 5: Solve for x
    x = 46,994,869,089/144,972
  6. Step 6: Final answer
    x = 324,165.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.