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Finding the Fourth Proportional to 303.86, 454.75 and 188.26

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Solution

The fourth proportional to 303.86, 454.75 and 188.26 is: 281.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.86 : 454.75 = 188.26 : x
  2. Step 2: Convert to fraction form
    303.86/454.75 = 188.26/x
  3. Step 3: Cross multiply
    303.86x = 454.75 × 188.26
  4. Step 4: Simplify right side
    303.86x = 85,611.24
  5. Step 5: Solve for x
    x = 85,611.24/303.86
  6. Step 6: Final answer
    x = 281.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.