Finding the Fourth Proportional to 409.39, 614.12 and 353.99
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Solution
The fourth proportional to 409.39, 614.12 and 353.99 is: 531.02
Step by Step Solution
- Step 1: Write the proportion equation
409.39 : 614.12 = 353.99 : x - Step 2: Convert to fraction form
409.39/614.12 = 353.99/x - Step 3: Cross multiply
409.39x = 614.12 × 353.99 - Step 4: Simplify right side
409.39x = 217,392.34 - Step 5: Solve for x
x = 217,392.34/409.39 - Step 6: Final answer
x = 531.02
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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.