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Finding the Third Proportional to 660.09 and 1,353.09

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Solution

The third proportional to 660.09 and 1,353.09 is: 2,773.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    660.09 : 1,353.09 = 1,353.09 : x
  2. Step 2: Convert to fraction form
    660.09/1,353.09 = 1,353.09/x
  3. Step 3: Cross multiply
    660.09x = 1,353.09 × 1,353.09
  4. Step 4: Simplify right side
    660.09x = 1,830,862.70
  5. Step 5: Solve for x
    x = 1,830,862.70/660.09
  6. Step 6: Final answer
    x = 2,773.64

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.