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Finding the Third Proportional to 1,218.94 and 1,482.19

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Solution

The third proportional to 1,218.94 and 1,482.19 is: 1,802.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218.94 : 1,482.19 = 1,482.19 : x
  2. Step 2: Convert to fraction form
    1,218.94/1,482.19 = 1,482.19/x
  3. Step 3: Cross multiply
    1,218.94x = 1,482.19 × 1,482.19
  4. Step 4: Simplify right side
    1,218.94x = 2,196,879.79
  5. Step 5: Solve for x
    x = 2,196,879.79/1,218.94
  6. Step 6: Final answer
    x = 1,802.29

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.