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Finding the Third Proportional to 101,088 and 221,400

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Solution

The third proportional to 101,088 and 221,400 is: 484,903.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,088 : 221,400 = 221,400 : x
  2. Step 2: Convert to fraction form
    101,088/221,400 = 221,400/x
  3. Step 3: Cross multiply
    101,088x = 221,400 × 221,400
  4. Step 4: Simplify right side
    101,088x = 49,017,960,000
  5. Step 5: Solve for x
    x = 49,017,960,000/101,088
  6. Step 6: Final answer
    x = 484,903.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.