Finding the Fourth Proportional to 286.07, 395.08 and 193.23
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Solution
The fourth proportional to 286.07, 395.08 and 193.23 is: 266.87
Step by Step Solution
- Step 1: Write the proportion equation
286.07 : 395.08 = 193.23 : x - Step 2: Convert to fraction form
286.07/395.08 = 193.23/x - Step 3: Cross multiply
286.07x = 395.08 × 193.23 - Step 4: Simplify right side
286.07x = 76,340.83 - Step 5: Solve for x
x = 76,340.83/286.07 - Step 6: Final answer
x = 266.87
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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.