Finding the Fourth Proportional to 409.65, 614.47 and 272.96
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Solution
The fourth proportional to 409.65, 614.47 and 272.96 is: 409.44
Step by Step Solution
- Step 1: Write the proportion equation
409.65 : 614.47 = 272.96 : x - Step 2: Convert to fraction form
409.65/614.47 = 272.96/x - Step 3: Cross multiply
409.65x = 614.47 × 272.96 - Step 4: Simplify right side
409.65x = 167,725.73 - Step 5: Solve for x
x = 167,725.73/409.65 - Step 6: Final answer
x = 409.44
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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.