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Finding the Third Proportional to 221,975.75 and 479,420

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Solution

The third proportional to 221,975.75 and 479,420 is: 1,035,444.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,975.75 : 479,420 = 479,420 : x
  2. Step 2: Convert to fraction form
    221,975.75/479,420 = 479,420/x
  3. Step 3: Cross multiply
    221,975.75x = 479,420 × 479,420
  4. Step 4: Simplify right side
    221,975.75x = 229,843,536,400
  5. Step 5: Solve for x
    x = 229,843,536,400/221,975.75
  6. Step 6: Final answer
    x = 1,035,444.35

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.