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Finding the Third Proportional to 279.56 and 599.77

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Solution

The third proportional to 279.56 and 599.77 is: 1,286.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    279.56 : 599.77 = 599.77 : x
  2. Step 2: Convert to fraction form
    279.56/599.77 = 599.77/x
  3. Step 3: Cross multiply
    279.56x = 599.77 × 599.77
  4. Step 4: Simplify right side
    279.56x = 359,718.80
  5. Step 5: Solve for x
    x = 359,718.80/279.56
  6. Step 6: Final answer
    x = 1,286.72

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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.