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Finding the Third Proportional to 209,710 and 456,283

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Solution

The third proportional to 209,710 and 456,283 is: 992,771.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,710 : 456,283 = 456,283 : x
  2. Step 2: Convert to fraction form
    209,710/456,283 = 456,283/x
  3. Step 3: Cross multiply
    209,710x = 456,283 × 456,283
  4. Step 4: Simplify right side
    209,710x = 208,194,176,089
  5. Step 5: Solve for x
    x = 208,194,176,089/209,710
  6. Step 6: Final answer
    x = 992,771.81

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.