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Finding the Third Proportional to 209,905 and 452,974

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Solution

The third proportional to 209,905 and 452,974 is: 977,515.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,905 : 452,974 = 452,974 : x
  2. Step 2: Convert to fraction form
    209,905/452,974 = 452,974/x
  3. Step 3: Cross multiply
    209,905x = 452,974 × 452,974
  4. Step 4: Simplify right side
    209,905x = 205,185,444,676
  5. Step 5: Solve for x
    x = 205,185,444,676/209,905
  6. Step 6: Final answer
    x = 977,515.76

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.