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Finding the Third Proportional to 78,469 and 193,483

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Solution

The third proportional to 78,469 and 193,483 is: 477,075.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,469 : 193,483 = 193,483 : x
  2. Step 2: Convert to fraction form
    78,469/193,483 = 193,483/x
  3. Step 3: Cross multiply
    78,469x = 193,483 × 193,483
  4. Step 4: Simplify right side
    78,469x = 37,435,671,289
  5. Step 5: Solve for x
    x = 37,435,671,289/78,469
  6. Step 6: Final answer
    x = 477,075.93

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Why These Related Problems?

These problems maintain the same ratio (2.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.