Finding the Fourth Proportional to 220,387.14, 304,203.06 and 129,736.08
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Solution
The fourth proportional to 220,387.14, 304,203.06 and 129,736.08 is: 179,076.30
Step by Step Solution
- Step 1: Write the proportion equation
220,387.14 : 304,203.06 = 129,736.08 : x - Step 2: Convert to fraction form
220,387.14/304,203.06 = 129,736.08/x - Step 3: Cross multiply
220,387.14x = 304,203.06 × 129,736.08 - Step 4: Simplify right side
220,387.14x = 39,466,112,528.40 - Step 5: Solve for x
x = 39,466,112,528.40/220,387.14 - Step 6: Final answer
x = 179,076.30
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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.