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Finding the Third Proportional to 990.98 and 1,483.73

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Solution

The third proportional to 990.98 and 1,483.73 is: 2,221.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    990.98 : 1,483.73 = 1,483.73 : x
  2. Step 2: Convert to fraction form
    990.98/1,483.73 = 1,483.73/x
  3. Step 3: Cross multiply
    990.98x = 1,483.73 × 1,483.73
  4. Step 4: Simplify right side
    990.98x = 2,201,467.70
  5. Step 5: Solve for x
    x = 2,201,467.70/990.98
  6. Step 6: Final answer
    x = 2,221.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.