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Finding the Third Proportional to 103,742 and 211,284

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Solution

The third proportional to 103,742 and 211,284 is: 430,307.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,742 : 211,284 = 211,284 : x
  2. Step 2: Convert to fraction form
    103,742/211,284 = 211,284/x
  3. Step 3: Cross multiply
    103,742x = 211,284 × 211,284
  4. Step 4: Simplify right side
    103,742x = 44,640,928,656
  5. Step 5: Solve for x
    x = 44,640,928,656/103,742
  6. Step 6: Final answer
    x = 430,307.19

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.