Finding the Fourth Proportional to 252.14, 347.81 and 189.99
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Solution
The fourth proportional to 252.14, 347.81 and 189.99 is: 262.08
Step by Step Solution
- Step 1: Write the proportion equation
252.14 : 347.81 = 189.99 : x - Step 2: Convert to fraction form
252.14/347.81 = 189.99/x - Step 3: Cross multiply
252.14x = 347.81 × 189.99 - Step 4: Simplify right side
252.14x = 66,079.47 - Step 5: Solve for x
x = 66,079.47/252.14 - Step 6: Final answer
x = 262.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.