Finding the Fourth Proportional to 214.81, 322.26 and 70.63
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Solution
The fourth proportional to 214.81, 322.26 and 70.63 is: 105.96
Step by Step Solution
- Step 1: Write the proportion equation
214.81 : 322.26 = 70.63 : x - Step 2: Convert to fraction form
214.81/322.26 = 70.63/x - Step 3: Cross multiply
214.81x = 322.26 × 70.63 - Step 4: Simplify right side
214.81x = 22,761.22 - Step 5: Solve for x
x = 22,761.22/214.81 - Step 6: Final answer
x = 105.96
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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.