Finding the Fourth Proportional to 230.06, 345.09 and 218.99
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Solution
The fourth proportional to 230.06, 345.09 and 218.99 is: 328.49
Step by Step Solution
- Step 1: Write the proportion equation
230.06 : 345.09 = 218.99 : x - Step 2: Convert to fraction form
230.06/345.09 = 218.99/x - Step 3: Cross multiply
230.06x = 345.09 × 218.99 - Step 4: Simplify right side
230.06x = 75,571.26 - Step 5: Solve for x
x = 75,571.26/230.06 - Step 6: Final answer
x = 328.49
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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.