Finding the Fourth Proportional to 262.11, 361.65 and 157.19
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Solution
The fourth proportional to 262.11, 361.65 and 157.19 is: 216.88
Step by Step Solution
- Step 1: Write the proportion equation
262.11 : 361.65 = 157.19 : x - Step 2: Convert to fraction form
262.11/361.65 = 157.19/x - Step 3: Cross multiply
262.11x = 361.65 × 157.19 - Step 4: Simplify right side
262.11x = 56,845.96 - Step 5: Solve for x
x = 56,845.96/262.11 - Step 6: Final answer
x = 216.88
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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.