Finding the Fourth Proportional to 221,187.92, 305,239.32 and 125,694.80
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Solution
The fourth proportional to 221,187.92, 305,239.32 and 125,694.80 is: 173,458.82
Step by Step Solution
- Step 1: Write the proportion equation
221,187.92 : 305,239.32 = 125,694.80 : x - Step 2: Convert to fraction form
221,187.92/305,239.32 = 125,694.80/x - Step 3: Cross multiply
221,187.92x = 305,239.32 × 125,694.80 - Step 4: Simplify right side
221,187.92x = 38,366,995,279.54 - Step 5: Solve for x
x = 38,366,995,279.54/221,187.92 - Step 6: Final answer
x = 173,458.82
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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.