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Finding the Third Proportional to 209,520 and 452,240

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Solution

The third proportional to 209,520 and 452,240 is: 976,140.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,520 : 452,240 = 452,240 : x
  2. Step 2: Convert to fraction form
    209,520/452,240 = 452,240/x
  3. Step 3: Cross multiply
    209,520x = 452,240 × 452,240
  4. Step 4: Simplify right side
    209,520x = 204,521,017,600
  5. Step 5: Solve for x
    x = 204,521,017,600/209,520
  6. Step 6: Final answer
    x = 976,140.79

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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.