Finding the Fourth Proportional to 281,955.84, 389,063.09 and 161,104.95
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Solution
The fourth proportional to 281,955.84, 389,063.09 and 161,104.95 is: 222,304.28
Step by Step Solution
- Step 1: Write the proportion equation
281,955.84 : 389,063.09 = 161,104.95 : x - Step 2: Convert to fraction form
281,955.84/389,063.09 = 161,104.95/x - Step 3: Cross multiply
281,955.84x = 389,063.09 × 161,104.95 - Step 4: Simplify right side
281,955.84x = 62,679,988,855.77 - Step 5: Solve for x
x = 62,679,988,855.77/281,955.84 - Step 6: Final answer
x = 222,304.28
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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.