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Finding the Third Proportional to 155,545.50 and 343,923

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Solution

The third proportional to 155,545.50 and 343,923 is: 760,440.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,545.50 : 343,923 = 343,923 : x
  2. Step 2: Convert to fraction form
    155,545.50/343,923 = 343,923/x
  3. Step 3: Cross multiply
    155,545.50x = 343,923 × 343,923
  4. Step 4: Simplify right side
    155,545.50x = 118,283,029,929
  5. Step 5: Solve for x
    x = 118,283,029,929/155,545.50
  6. Step 6: Final answer
    x = 760,440.06

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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.