Finding the Fourth Proportional to 445.99, 668.97 and 157.42
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Solution
The fourth proportional to 445.99, 668.97 and 157.42 is: 236.12
Step by Step Solution
- Step 1: Write the proportion equation
445.99 : 668.97 = 157.42 : x - Step 2: Convert to fraction form
445.99/668.97 = 157.42/x - Step 3: Cross multiply
445.99x = 668.97 × 157.42 - Step 4: Simplify right side
445.99x = 105,309.26 - Step 5: Solve for x
x = 105,309.26/445.99 - Step 6: Final answer
x = 236.12
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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.