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Finding the Third Proportional to 230.55 and 487.16

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Solution

The third proportional to 230.55 and 487.16 is: 1,029.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.55 : 487.16 = 487.16 : x
  2. Step 2: Convert to fraction form
    230.55/487.16 = 487.16/x
  3. Step 3: Cross multiply
    230.55x = 487.16 × 487.16
  4. Step 4: Simplify right side
    230.55x = 237,325.02
  5. Step 5: Solve for x
    x = 237,325.02/230.55
  6. Step 6: Final answer
    x = 1,029.37

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.