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Finding the Third Proportional to 100,580 and 220,488

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Solution

The third proportional to 100,580 and 220,488 is: 483,346.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,580 : 220,488 = 220,488 : x
  2. Step 2: Convert to fraction form
    100,580/220,488 = 220,488/x
  3. Step 3: Cross multiply
    100,580x = 220,488 × 220,488
  4. Step 4: Simplify right side
    100,580x = 48,614,958,144
  5. Step 5: Solve for x
    x = 48,614,958,144/100,580
  6. Step 6: Final answer
    x = 483,346.17

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.