Finding the Fourth Proportional to 237.93, 328.09 and 154.99
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Solution
The fourth proportional to 237.93, 328.09 and 154.99 is: 213.72
Step by Step Solution
- Step 1: Write the proportion equation
237.93 : 328.09 = 154.99 : x - Step 2: Convert to fraction form
237.93/328.09 = 154.99/x - Step 3: Cross multiply
237.93x = 328.09 × 154.99 - Step 4: Simplify right side
237.93x = 50,850.67 - Step 5: Solve for x
x = 50,850.67/237.93 - Step 6: Final answer
x = 213.72
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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.