Finding the Fourth Proportional to 237.74, 328.08 and 154.99
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Solution
The fourth proportional to 237.74, 328.08 and 154.99 is: 213.89
Step by Step Solution
- Step 1: Write the proportion equation
237.74 : 328.08 = 154.99 : x - Step 2: Convert to fraction form
237.74/328.08 = 154.99/x - Step 3: Cross multiply
237.74x = 328.08 × 154.99 - Step 4: Simplify right side
237.74x = 50,849.70 - Step 5: Solve for x
x = 50,849.70/237.74 - Step 6: Final answer
x = 213.89
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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.