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Finding the Fourth Proportional to 456.80, 629.26 and 363.86

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Solution

The fourth proportional to 456.80, 629.26 and 363.86 is: 501.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.80 : 629.26 = 363.86 : x
  2. Step 2: Convert to fraction form
    456.80/629.26 = 363.86/x
  3. Step 3: Cross multiply
    456.80x = 629.26 × 363.86
  4. Step 4: Simplify right side
    456.80x = 228,962.54
  5. Step 5: Solve for x
    x = 228,962.54/456.80
  6. Step 6: Final answer
    x = 501.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.