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Finding the Third Proportional to 194,480 and 278,104

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Solution

The third proportional to 194,480 and 278,104 is: 397,685.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,480 : 278,104 = 278,104 : x
  2. Step 2: Convert to fraction form
    194,480/278,104 = 278,104/x
  3. Step 3: Cross multiply
    194,480x = 278,104 × 278,104
  4. Step 4: Simplify right side
    194,480x = 77,341,834,816
  5. Step 5: Solve for x
    x = 77,341,834,816/194,480
  6. Step 6: Final answer
    x = 397,685.29

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.