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Finding the Third Proportional to 228,220 and 486,970

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Solution

The third proportional to 228,220 and 486,970 is: 1,039,084.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,220 : 486,970 = 486,970 : x
  2. Step 2: Convert to fraction form
    228,220/486,970 = 486,970/x
  3. Step 3: Cross multiply
    228,220x = 486,970 × 486,970
  4. Step 4: Simplify right side
    228,220x = 237,139,780,900
  5. Step 5: Solve for x
    x = 237,139,780,900/228,220
  6. Step 6: Final answer
    x = 1,039,084.13

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.