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Finding the Third Proportional to 100,800 and 148,284

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Solution

The third proportional to 100,800 and 148,284 is: 218,136.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,800 : 148,284 = 148,284 : x
  2. Step 2: Convert to fraction form
    100,800/148,284 = 148,284/x
  3. Step 3: Cross multiply
    100,800x = 148,284 × 148,284
  4. Step 4: Simplify right side
    100,800x = 21,988,144,656
  5. Step 5: Solve for x
    x = 21,988,144,656/100,800
  6. Step 6: Final answer
    x = 218,136.36

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.