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Finding the Third Proportional to 28,220 and 61,303

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Solution

The third proportional to 28,220 and 61,303 is: 133,170.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,220 : 61,303 = 61,303 : x
  2. Step 2: Convert to fraction form
    28,220/61,303 = 61,303/x
  3. Step 3: Cross multiply
    28,220x = 61,303 × 61,303
  4. Step 4: Simplify right side
    28,220x = 3,758,057,809
  5. Step 5: Solve for x
    x = 3,758,057,809/28,220
  6. Step 6: Final answer
    x = 133,170.01

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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.