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Finding the Third Proportional to 216,292 and 322,646

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Solution

The third proportional to 216,292 and 322,646 is: 481,295.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,292 : 322,646 = 322,646 : x
  2. Step 2: Convert to fraction form
    216,292/322,646 = 322,646/x
  3. Step 3: Cross multiply
    216,292x = 322,646 × 322,646
  4. Step 4: Simplify right side
    216,292x = 104,100,441,316
  5. Step 5: Solve for x
    x = 104,100,441,316/216,292
  6. Step 6: Final answer
    x = 481,295.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.