Finding the Fourth Proportional to 409.73, 614.60 and 135.84
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Solution
The fourth proportional to 409.73, 614.60 and 135.84 is: 203.76
Step by Step Solution
- Step 1: Write the proportion equation
409.73 : 614.60 = 135.84 : x - Step 2: Convert to fraction form
409.73/614.60 = 135.84/x - Step 3: Cross multiply
409.73x = 614.60 × 135.84 - Step 4: Simplify right side
409.73x = 83,487.26 - Step 5: Solve for x
x = 83,487.26/409.73 - Step 6: Final answer
x = 203.76
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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.