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Finding the Third Proportional to 551.44 and 1,210.94

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Solution

The third proportional to 551.44 and 1,210.94 is: 2,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.44 : 1,210.94 = 1,210.94 : x
  2. Step 2: Convert to fraction form
    551.44/1,210.94 = 1,210.94/x
  3. Step 3: Cross multiply
    551.44x = 1,210.94 × 1,210.94
  4. Step 4: Simplify right side
    551.44x = 1,466,369.63
  5. Step 5: Solve for x
    x = 1,466,369.63/551.44
  6. Step 6: Final answer
    x = 2,659.18

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.