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Finding the Third Proportional to 59,220 and 128,268

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Solution

The third proportional to 59,220 and 128,268 is: 277,823.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,220 : 128,268 = 128,268 : x
  2. Step 2: Convert to fraction form
    59,220/128,268 = 128,268/x
  3. Step 3: Cross multiply
    59,220x = 128,268 × 128,268
  4. Step 4: Simplify right side
    59,220x = 16,452,679,824
  5. Step 5: Solve for x
    x = 16,452,679,824/59,220
  6. Step 6: Final answer
    x = 277,823.03

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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.