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Finding the Third Proportional to 210,440 and 454,772

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Solution

The third proportional to 210,440 and 454,772 is: 982,786.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,440 : 454,772 = 454,772 : x
  2. Step 2: Convert to fraction form
    210,440/454,772 = 454,772/x
  3. Step 3: Cross multiply
    210,440x = 454,772 × 454,772
  4. Step 4: Simplify right side
    210,440x = 206,817,571,984
  5. Step 5: Solve for x
    x = 206,817,571,984/210,440
  6. Step 6: Final answer
    x = 982,786.41

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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.