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Finding the Third Proportional to 222,901 and 434,639

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Solution

The third proportional to 222,901 and 434,639 is: 847,511.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,901 : 434,639 = 434,639 : x
  2. Step 2: Convert to fraction form
    222,901/434,639 = 434,639/x
  3. Step 3: Cross multiply
    222,901x = 434,639 × 434,639
  4. Step 4: Simplify right side
    222,901x = 188,911,060,321
  5. Step 5: Solve for x
    x = 188,911,060,321/222,901
  6. Step 6: Final answer
    x = 847,511.05

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.