Finding the Fourth Proportional to 214.01, 320.97 and 69.68
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Solution
The fourth proportional to 214.01, 320.97 and 69.68 is: 104.51
Step by Step Solution
- Step 1: Write the proportion equation
214.01 : 320.97 = 69.68 : x - Step 2: Convert to fraction form
214.01/320.97 = 69.68/x - Step 3: Cross multiply
214.01x = 320.97 × 69.68 - Step 4: Simplify right side
214.01x = 22,365.19 - Step 5: Solve for x
x = 22,365.19/214.01 - Step 6: Final answer
x = 104.51
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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.