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Finding the Third Proportional to 205.88 and 499.50

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Solution

The third proportional to 205.88 and 499.50 is: 1,211.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.88 : 499.50 = 499.50 : x
  2. Step 2: Convert to fraction form
    205.88/499.50 = 499.50/x
  3. Step 3: Cross multiply
    205.88x = 499.50 × 499.50
  4. Step 4: Simplify right side
    205.88x = 249,500.25
  5. Step 5: Solve for x
    x = 249,500.25/205.88
  6. Step 6: Final answer
    x = 1,211.90

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.