Finding the Fourth Proportional to 396.99, 595.32 and 136.92
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Solution
The fourth proportional to 396.99, 595.32 and 136.92 is: 205.33
Step by Step Solution
- Step 1: Write the proportion equation
396.99 : 595.32 = 136.92 : x - Step 2: Convert to fraction form
396.99/595.32 = 136.92/x - Step 3: Cross multiply
396.99x = 595.32 × 136.92 - Step 4: Simplify right side
396.99x = 81,512.93 - Step 5: Solve for x
x = 81,512.93/396.99 - Step 6: Final answer
x = 205.33
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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.