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Finding the Third Proportional to 209,090 and 452,740

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Solution

The third proportional to 209,090 and 452,740 is: 980,312.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,090 : 452,740 = 452,740 : x
  2. Step 2: Convert to fraction form
    209,090/452,740 = 452,740/x
  3. Step 3: Cross multiply
    209,090x = 452,740 × 452,740
  4. Step 4: Simplify right side
    209,090x = 204,973,507,600
  5. Step 5: Solve for x
    x = 204,973,507,600/209,090
  6. Step 6: Final answer
    x = 980,312.34

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.