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Finding the Third Proportional to 216,972 and 470,029

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Solution

The third proportional to 216,972 and 470,029 is: 1,018,229.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,972 : 470,029 = 470,029 : x
  2. Step 2: Convert to fraction form
    216,972/470,029 = 470,029/x
  3. Step 3: Cross multiply
    216,972x = 470,029 × 470,029
  4. Step 4: Simplify right side
    216,972x = 220,927,260,841
  5. Step 5: Solve for x
    x = 220,927,260,841/216,972
  6. Step 6: Final answer
    x = 1,018,229.36

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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.