Finding the Fourth Proportional to 409.79, 614.79 and 236.14
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Solution
The fourth proportional to 409.79, 614.79 and 236.14 is: 354.27
Step by Step Solution
- Step 1: Write the proportion equation
409.79 : 614.79 = 236.14 : x - Step 2: Convert to fraction form
409.79/614.79 = 236.14/x - Step 3: Cross multiply
409.79x = 614.79 × 236.14 - Step 4: Simplify right side
409.79x = 145,175.24 - Step 5: Solve for x
x = 145,175.24/409.79 - Step 6: Final answer
x = 354.27
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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.