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Finding the Third Proportional to 148,970 and 331,040

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Solution

The third proportional to 148,970 and 331,040 is: 735,634.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,970 : 331,040 = 331,040 : x
  2. Step 2: Convert to fraction form
    148,970/331,040 = 331,040/x
  3. Step 3: Cross multiply
    148,970x = 331,040 × 331,040
  4. Step 4: Simplify right side
    148,970x = 109,587,481,600
  5. Step 5: Solve for x
    x = 109,587,481,600/148,970
  6. Step 6: Final answer
    x = 735,634.57

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.