Finding the Fourth Proportional to 352.70, 486.62 and 212.75
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Solution
The fourth proportional to 352.70, 486.62 and 212.75 is: 293.53
Step by Step Solution
- Step 1: Write the proportion equation
352.70 : 486.62 = 212.75 : x - Step 2: Convert to fraction form
352.70/486.62 = 212.75/x - Step 3: Cross multiply
352.70x = 486.62 × 212.75 - Step 4: Simplify right side
352.70x = 103,525.97 - Step 5: Solve for x
x = 103,525.97/352.70 - Step 6: Final answer
x = 293.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.