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Finding the Third Proportional to 286.88 and 383.63

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Solution

The third proportional to 286.88 and 383.63 is: 513.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    286.88 : 383.63 = 383.63 : x
  2. Step 2: Convert to fraction form
    286.88/383.63 = 383.63/x
  3. Step 3: Cross multiply
    286.88x = 383.63 × 383.63
  4. Step 4: Simplify right side
    286.88x = 147,168.14
  5. Step 5: Solve for x
    x = 147,168.14/286.88
  6. Step 6: Final answer
    x = 513.00

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.