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Finding the Third Proportional to 9,210 and 19,240

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Solution

The third proportional to 9,210 and 19,240 is: 40,193.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,210 : 19,240 = 19,240 : x
  2. Step 2: Convert to fraction form
    9,210/19,240 = 19,240/x
  3. Step 3: Cross multiply
    9,210x = 19,240 × 19,240
  4. Step 4: Simplify right side
    9,210x = 370,177,600
  5. Step 5: Solve for x
    x = 370,177,600/9,210
  6. Step 6: Final answer
    x = 40,193.01

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.