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Finding the Third Proportional to 208,558 and 458,588

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Solution

The third proportional to 208,558 and 458,588 is: 1,008,366.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,558 : 458,588 = 458,588 : x
  2. Step 2: Convert to fraction form
    208,558/458,588 = 458,588/x
  3. Step 3: Cross multiply
    208,558x = 458,588 × 458,588
  4. Step 4: Simplify right side
    208,558x = 210,302,953,744
  5. Step 5: Solve for x
    x = 210,302,953,744/208,558
  6. Step 6: Final answer
    x = 1,008,366.76

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.