Finding the Third Proportional to 379 and 455.50
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Solution
The third proportional to 379 and 455.50 is: 547.44
Step by Step Solution
- Step 1: Write the proportion equation
379 : 455.50 = 455.50 : x - Step 2: Convert to fraction form
379/455.50 = 455.50/x - Step 3: Cross multiply
379x = 455.50 × 455.50 - Step 4: Simplify right side
379x = 207,480.25 - Step 5: Solve for x
x = 207,480.25/379 - Step 6: Final answer
x = 547.44
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These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.