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Finding the Third Proportional to 210,700 and 459,272

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Solution

The third proportional to 210,700 and 459,272 is: 1,001,095.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,700 : 459,272 = 459,272 : x
  2. Step 2: Convert to fraction form
    210,700/459,272 = 459,272/x
  3. Step 3: Cross multiply
    210,700x = 459,272 × 459,272
  4. Step 4: Simplify right side
    210,700x = 210,930,769,984
  5. Step 5: Solve for x
    x = 210,930,769,984/210,700
  6. Step 6: Final answer
    x = 1,001,095.25

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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.