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Finding the Third Proportional to 100,008 and 216,630

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Solution

The third proportional to 100,008 and 216,630 is: 469,248.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,008 : 216,630 = 216,630 : x
  2. Step 2: Convert to fraction form
    100,008/216,630 = 216,630/x
  3. Step 3: Cross multiply
    100,008x = 216,630 × 216,630
  4. Step 4: Simplify right side
    100,008x = 46,928,556,900
  5. Step 5: Solve for x
    x = 46,928,556,900/100,008
  6. Step 6: Final answer
    x = 469,248.03

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.