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Finding the Third Proportional to 155,451 and 334,686

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Solution

The third proportional to 155,451 and 334,686 is: 720,578.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,451 : 334,686 = 334,686 : x
  2. Step 2: Convert to fraction form
    155,451/334,686 = 334,686/x
  3. Step 3: Cross multiply
    155,451x = 334,686 × 334,686
  4. Step 4: Simplify right side
    155,451x = 112,014,718,596
  5. Step 5: Solve for x
    x = 112,014,718,596/155,451
  6. Step 6: Final answer
    x = 720,578.95

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.