Finding the Fourth Proportional to 252.84, 378.98 and 149.99
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Solution
The fourth proportional to 252.84, 378.98 and 149.99 is: 224.82
Step by Step Solution
- Step 1: Write the proportion equation
252.84 : 378.98 = 149.99 : x - Step 2: Convert to fraction form
252.84/378.98 = 149.99/x - Step 3: Cross multiply
252.84x = 378.98 × 149.99 - Step 4: Simplify right side
252.84x = 56,841.97 - Step 5: Solve for x
x = 56,841.97/252.84 - Step 6: Final answer
x = 224.82
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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.