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Finding the Third Proportional to 147,890 and 221,763

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Solution

The third proportional to 147,890 and 221,763 is: 332,536.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,890 : 221,763 = 221,763 : x
  2. Step 2: Convert to fraction form
    147,890/221,763 = 221,763/x
  3. Step 3: Cross multiply
    147,890x = 221,763 × 221,763
  4. Step 4: Simplify right side
    147,890x = 49,178,828,169
  5. Step 5: Solve for x
    x = 49,178,828,169/147,890
  6. Step 6: Final answer
    x = 332,536.54

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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.