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Finding the Third Proportional to 212,116 and 457,441

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Solution

The third proportional to 212,116 and 457,441 is: 986,499.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,116 : 457,441 = 457,441 : x
  2. Step 2: Convert to fraction form
    212,116/457,441 = 457,441/x
  3. Step 3: Cross multiply
    212,116x = 457,441 × 457,441
  4. Step 4: Simplify right side
    212,116x = 209,252,268,481
  5. Step 5: Solve for x
    x = 209,252,268,481/212,116
  6. Step 6: Final answer
    x = 986,499.22

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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.