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Finding the Third Proportional to 193,278 and 307,485

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Solution

The third proportional to 193,278 and 307,485 is: 489,176.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,278 : 307,485 = 307,485 : x
  2. Step 2: Convert to fraction form
    193,278/307,485 = 307,485/x
  3. Step 3: Cross multiply
    193,278x = 307,485 × 307,485
  4. Step 4: Simplify right side
    193,278x = 94,547,025,225
  5. Step 5: Solve for x
    x = 94,547,025,225/193,278
  6. Step 6: Final answer
    x = 489,176.34

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.