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Finding the Third Proportional to 218.88 and 473.13

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Solution

The third proportional to 218.88 and 473.13 is: 1,022.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    218.88 : 473.13 = 473.13 : x
  2. Step 2: Convert to fraction form
    218.88/473.13 = 473.13/x
  3. Step 3: Cross multiply
    218.88x = 473.13 × 473.13
  4. Step 4: Simplify right side
    218.88x = 223,847.27
  5. Step 5: Solve for x
    x = 223,847.27/218.88
  6. Step 6: Final answer
    x = 1,022.72

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.