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Finding the Third Proportional to 155,530.50 and 343,893

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Solution

The third proportional to 155,530.50 and 343,893 is: 760,380.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,530.50 : 343,893 = 343,893 : x
  2. Step 2: Convert to fraction form
    155,530.50/343,893 = 343,893/x
  3. Step 3: Cross multiply
    155,530.50x = 343,893 × 343,893
  4. Step 4: Simplify right side
    155,530.50x = 118,262,395,449
  5. Step 5: Solve for x
    x = 118,262,395,449/155,530.50
  6. Step 6: Final answer
    x = 760,380.73

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.