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Finding the Third Proportional to 199,719 and 434,700

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Solution

The third proportional to 199,719 and 434,700 is: 946,149.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,719 : 434,700 = 434,700 : x
  2. Step 2: Convert to fraction form
    199,719/434,700 = 434,700/x
  3. Step 3: Cross multiply
    199,719x = 434,700 × 434,700
  4. Step 4: Simplify right side
    199,719x = 188,964,090,000
  5. Step 5: Solve for x
    x = 188,964,090,000/199,719
  6. Step 6: Final answer
    x = 946,149.79

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.