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Finding the Third Proportional to 101,880 and 221,276

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Solution

The third proportional to 101,880 and 221,276 is: 480,595.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,880 : 221,276 = 221,276 : x
  2. Step 2: Convert to fraction form
    101,880/221,276 = 221,276/x
  3. Step 3: Cross multiply
    101,880x = 221,276 × 221,276
  4. Step 4: Simplify right side
    101,880x = 48,963,068,176
  5. Step 5: Solve for x
    x = 48,963,068,176/101,880
  6. Step 6: Final answer
    x = 480,595.49

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.