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Finding the Third Proportional to 199,708 and 434,408

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Solution

The third proportional to 199,708 and 434,408 is: 944,931.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,708 : 434,408 = 434,408 : x
  2. Step 2: Convert to fraction form
    199,708/434,408 = 434,408/x
  3. Step 3: Cross multiply
    199,708x = 434,408 × 434,408
  4. Step 4: Simplify right side
    199,708x = 188,710,310,464
  5. Step 5: Solve for x
    x = 188,710,310,464/199,708
  6. Step 6: Final answer
    x = 944,931.15

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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.