Finding the Fourth Proportional to 409.84, 614.67 and 135.95
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Solution
The fourth proportional to 409.84, 614.67 and 135.95 is: 203.90
Step by Step Solution
- Step 1: Write the proportion equation
409.84 : 614.67 = 135.95 : x - Step 2: Convert to fraction form
409.84/614.67 = 135.95/x - Step 3: Cross multiply
409.84x = 614.67 × 135.95 - Step 4: Simplify right side
409.84x = 83,564.26 - Step 5: Solve for x
x = 83,564.26/409.84 - 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.