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Finding the Third Proportional to 98,480 and 214,778

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Solution

The third proportional to 98,480 and 214,778 is: 468,415.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,480 : 214,778 = 214,778 : x
  2. Step 2: Convert to fraction form
    98,480/214,778 = 214,778/x
  3. Step 3: Cross multiply
    98,480x = 214,778 × 214,778
  4. Step 4: Simplify right side
    98,480x = 46,129,589,284
  5. Step 5: Solve for x
    x = 46,129,589,284/98,480
  6. Step 6: Final answer
    x = 468,415.81

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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.