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Finding the Third Proportional to 98,620 and 216,011

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Solution

The third proportional to 98,620 and 216,011 is: 473,136.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,620 : 216,011 = 216,011 : x
  2. Step 2: Convert to fraction form
    98,620/216,011 = 216,011/x
  3. Step 3: Cross multiply
    98,620x = 216,011 × 216,011
  4. Step 4: Simplify right side
    98,620x = 46,660,752,121
  5. Step 5: Solve for x
    x = 46,660,752,121/98,620
  6. Step 6: Final answer
    x = 473,136.81

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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.