Finding the Fourth Proportional to 408.68, 564.11 and 242.99
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Solution
The fourth proportional to 408.68, 564.11 and 242.99 is: 335.40
Step by Step Solution
- Step 1: Write the proportion equation
408.68 : 564.11 = 242.99 : x - Step 2: Convert to fraction form
408.68/564.11 = 242.99/x - Step 3: Cross multiply
408.68x = 564.11 × 242.99 - Step 4: Simplify right side
408.68x = 137,069.05 - Step 5: Solve for x
x = 137,069.05/408.68 - Step 6: Final answer
x = 335.40
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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.