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Finding the Third Proportional to 329,809.50 and 505,377

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Solution

The third proportional to 329,809.50 and 505,377 is: 774,404.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,809.50 : 505,377 = 505,377 : x
  2. Step 2: Convert to fraction form
    329,809.50/505,377 = 505,377/x
  3. Step 3: Cross multiply
    329,809.50x = 505,377 × 505,377
  4. Step 4: Simplify right side
    329,809.50x = 255,405,912,129
  5. Step 5: Solve for x
    x = 255,405,912,129/329,809.50
  6. Step 6: Final answer
    x = 774,404.35

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.