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Finding the Third Proportional to 208,642 and 450,543

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Solution

The third proportional to 208,642 and 450,543 is: 972,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,642 : 450,543 = 450,543 : x
  2. Step 2: Convert to fraction form
    208,642/450,543 = 450,543/x
  3. Step 3: Cross multiply
    208,642x = 450,543 × 450,543
  4. Step 4: Simplify right side
    208,642x = 202,988,994,849
  5. Step 5: Solve for x
    x = 202,988,994,849/208,642
  6. Step 6: Final answer
    x = 972,905.72

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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.