Finding the Fourth Proportional to 302.88, 416.97 and 219.84
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Solution
The fourth proportional to 302.88, 416.97 and 219.84 is: 302.65
Step by Step Solution
- Step 1: Write the proportion equation
302.88 : 416.97 = 219.84 : x - Step 2: Convert to fraction form
302.88/416.97 = 219.84/x - Step 3: Cross multiply
302.88x = 416.97 × 219.84 - Step 4: Simplify right side
302.88x = 91,666.68 - Step 5: Solve for x
x = 91,666.68/302.88 - Step 6: Final answer
x = 302.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.