Finding the Fourth Proportional to 684.99, 1,027.62 and 252.18
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Solution
The fourth proportional to 684.99, 1,027.62 and 252.18 is: 378.32
Step by Step Solution
- Step 1: Write the proportion equation
684.99 : 1,027.62 = 252.18 : x - Step 2: Convert to fraction form
684.99/1,027.62 = 252.18/x - Step 3: Cross multiply
684.99x = 1,027.62 × 252.18 - Step 4: Simplify right side
684.99x = 259,145.21 - Step 5: Solve for x
x = 259,145.21/684.99 - Step 6: Final answer
x = 378.32
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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.