Finding the Fourth Proportional to 301.26, 451.74 and 147.12
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Solution
The fourth proportional to 301.26, 451.74 and 147.12 is: 220.61
Step by Step Solution
- Step 1: Write the proportion equation
301.26 : 451.74 = 147.12 : x - Step 2: Convert to fraction form
301.26/451.74 = 147.12/x - Step 3: Cross multiply
301.26x = 451.74 × 147.12 - Step 4: Simplify right side
301.26x = 66,459.99 - Step 5: Solve for x
x = 66,459.99/301.26 - Step 6: Final answer
x = 220.61
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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.