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Finding the Third Proportional to 208,116 and 491,121

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Solution

The third proportional to 208,116 and 491,121 is: 1,158,968.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,116 : 491,121 = 491,121 : x
  2. Step 2: Convert to fraction form
    208,116/491,121 = 491,121/x
  3. Step 3: Cross multiply
    208,116x = 491,121 × 491,121
  4. Step 4: Simplify right side
    208,116x = 241,199,836,641
  5. Step 5: Solve for x
    x = 241,199,836,641/208,116
  6. Step 6: Final answer
    x = 1,158,968.25

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.