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Finding the Third Proportional to 221,609 and 332,346

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Solution

The third proportional to 221,609 and 332,346 is: 498,417.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,609 : 332,346 = 332,346 : x
  2. Step 2: Convert to fraction form
    221,609/332,346 = 332,346/x
  3. Step 3: Cross multiply
    221,609x = 332,346 × 332,346
  4. Step 4: Simplify right side
    221,609x = 110,453,863,716
  5. Step 5: Solve for x
    x = 110,453,863,716/221,609
  6. Step 6: Final answer
    x = 498,417.77

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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.