Finding the Fourth Proportional to 252.84, 379.21 and 70.19
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Solution
The fourth proportional to 252.84, 379.21 and 70.19 is: 105.27
Step by Step Solution
- Step 1: Write the proportion equation
252.84 : 379.21 = 70.19 : x - Step 2: Convert to fraction form
252.84/379.21 = 70.19/x - Step 3: Cross multiply
252.84x = 379.21 × 70.19 - Step 4: Simplify right side
252.84x = 26,616.40 - Step 5: Solve for x
x = 26,616.40/252.84 - Step 6: Final answer
x = 105.27
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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.