Finding the Fourth Proportional to 198,873.36, 274,546.80 and 153,449.28
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Solution
The fourth proportional to 198,873.36, 274,546.80 and 153,449.28 is: 211,838.37
Step by Step Solution
- Step 1: Write the proportion equation
198,873.36 : 274,546.80 = 153,449.28 : x - Step 2: Convert to fraction form
198,873.36/274,546.80 = 153,449.28/x - Step 3: Cross multiply
198,873.36x = 274,546.80 × 153,449.28 - Step 4: Simplify right side
198,873.36x = 42,129,008,786.30 - Step 5: Solve for x
x = 42,129,008,786.30/198,873.36 - Step 6: Final answer
x = 211,838.37
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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.