Finding the Fourth Proportional to 286.08, 394.93 and 193.31
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Solution
The fourth proportional to 286.08, 394.93 and 193.31 is: 266.86
Step by Step Solution
- Step 1: Write the proportion equation
286.08 : 394.93 = 193.31 : x - Step 2: Convert to fraction form
286.08/394.93 = 193.31/x - Step 3: Cross multiply
286.08x = 394.93 × 193.31 - Step 4: Simplify right side
286.08x = 76,343.67 - Step 5: Solve for x
x = 76,343.67/286.08 - Step 6: Final answer
x = 266.86
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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.