Finding the Fourth Proportional to 395.55, 546.29 and 270.99
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Solution
The fourth proportional to 395.55, 546.29 and 270.99 is: 374.26
Step by Step Solution
- Step 1: Write the proportion equation
395.55 : 546.29 = 270.99 : x - Step 2: Convert to fraction form
395.55/546.29 = 270.99/x - Step 3: Cross multiply
395.55x = 546.29 × 270.99 - Step 4: Simplify right side
395.55x = 148,039.13 - Step 5: Solve for x
x = 148,039.13/395.55 - Step 6: Final answer
x = 374.26
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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.