Finding the Fourth Proportional to 409.77, 614.67 and 135.93
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Solution
The fourth proportional to 409.77, 614.67 and 135.93 is: 203.90
Step by Step Solution
- Step 1: Write the proportion equation
409.77 : 614.67 = 135.93 : x - Step 2: Convert to fraction form
409.77/614.67 = 135.93/x - Step 3: Cross multiply
409.77x = 614.67 × 135.93 - Step 4: Simplify right side
409.77x = 83,552.09 - Step 5: Solve for x
x = 83,552.09/409.77 - Step 6: Final answer
x = 203.90
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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.