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Finding the Third Proportional to 490.63 and 1,134.88

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Solution

The third proportional to 490.63 and 1,134.88 is: 2,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    490.63 : 1,134.88 = 1,134.88 : x
  2. Step 2: Convert to fraction form
    490.63/1,134.88 = 1,134.88/x
  3. Step 3: Cross multiply
    490.63x = 1,134.88 × 1,134.88
  4. Step 4: Simplify right side
    490.63x = 1,287,941.27
  5. Step 5: Solve for x
    x = 1,287,941.27/490.63
  6. Step 6: Final answer
    x = 2,625.10

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.