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Finding the Third Proportional to 222.61 and 477.84

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Solution

The third proportional to 222.61 and 477.84 is: 1,025.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.61 : 477.84 = 477.84 : x
  2. Step 2: Convert to fraction form
    222.61/477.84 = 477.84/x
  3. Step 3: Cross multiply
    222.61x = 477.84 × 477.84
  4. Step 4: Simplify right side
    222.61x = 228,334.65
  5. Step 5: Solve for x
    x = 228,334.65/222.61
  6. Step 6: Final answer
    x = 1,025.72

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.