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Finding the Third Proportional to 395.63 and 577.31

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Solution

The third proportional to 395.63 and 577.31 is: 842.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.63 : 577.31 = 577.31 : x
  2. Step 2: Convert to fraction form
    395.63/577.31 = 577.31/x
  3. Step 3: Cross multiply
    395.63x = 577.31 × 577.31
  4. Step 4: Simplify right side
    395.63x = 333,289.72
  5. Step 5: Solve for x
    x = 333,289.72/395.63
  6. Step 6: Final answer
    x = 842.44

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.