Finding the Fourth Proportional to 409.67, 614.44 and 135.75
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Solution
The fourth proportional to 409.67, 614.44 and 135.75 is: 203.60
Step by Step Solution
- Step 1: Write the proportion equation
409.67 : 614.44 = 135.75 : x - Step 2: Convert to fraction form
409.67/614.44 = 135.75/x - Step 3: Cross multiply
409.67x = 614.44 × 135.75 - Step 4: Simplify right side
409.67x = 83,410.23 - Step 5: Solve for x
x = 83,410.23/409.67 - Step 6: Final answer
x = 203.60
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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.