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Finding the Third Proportional to 138,994 and 303,480

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Solution

The third proportional to 138,994 and 303,480 is: 662,619.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,994 : 303,480 = 303,480 : x
  2. Step 2: Convert to fraction form
    138,994/303,480 = 303,480/x
  3. Step 3: Cross multiply
    138,994x = 303,480 × 303,480
  4. Step 4: Simplify right side
    138,994x = 92,100,110,400
  5. Step 5: Solve for x
    x = 92,100,110,400/138,994
  6. Step 6: Final answer
    x = 662,619.32

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.