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Finding the Third Proportional to 148,040 and 221,436

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Solution

The third proportional to 148,040 and 221,436 is: 331,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,040 : 221,436 = 221,436 : x
  2. Step 2: Convert to fraction form
    148,040/221,436 = 221,436/x
  3. Step 3: Cross multiply
    148,040x = 221,436 × 221,436
  4. Step 4: Simplify right side
    148,040x = 49,033,902,096
  5. Step 5: Solve for x
    x = 49,033,902,096/148,040
  6. Step 6: Final answer
    x = 331,220.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.