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Finding the Third Proportional to 221,220 and 340,224

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Solution

The third proportional to 221,220 and 340,224 is: 523,245.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,220 : 340,224 = 340,224 : x
  2. Step 2: Convert to fraction form
    221,220/340,224 = 340,224/x
  3. Step 3: Cross multiply
    221,220x = 340,224 × 340,224
  4. Step 4: Simplify right side
    221,220x = 115,752,370,176
  5. Step 5: Solve for x
    x = 115,752,370,176/221,220
  6. Step 6: Final answer
    x = 523,245.50

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.