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Finding the Third Proportional to 208,278 and 448,200

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Solution

The third proportional to 208,278 and 448,200 is: 964,495.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,278 : 448,200 = 448,200 : x
  2. Step 2: Convert to fraction form
    208,278/448,200 = 448,200/x
  3. Step 3: Cross multiply
    208,278x = 448,200 × 448,200
  4. Step 4: Simplify right side
    208,278x = 200,883,240,000
  5. Step 5: Solve for x
    x = 200,883,240,000/208,278
  6. Step 6: Final answer
    x = 964,495.72

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.