Finding the Fourth Proportional to 409.88, 614.54 and 214.99
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Solution
The fourth proportional to 409.88, 614.54 and 214.99 is: 322.34
Step by Step Solution
- Step 1: Write the proportion equation
409.88 : 614.54 = 214.99 : x - Step 2: Convert to fraction form
409.88/614.54 = 214.99/x - Step 3: Cross multiply
409.88x = 614.54 × 214.99 - Step 4: Simplify right side
409.88x = 132,119.95 - Step 5: Solve for x
x = 132,119.95/409.88 - Step 6: Final answer
x = 322.34
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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.