Finding the Fourth Proportional to 221,138.68, 305,097.97 and 180,232.47
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Solution
The fourth proportional to 221,138.68, 305,097.97 and 180,232.47 is: 248,660.98
Step by Step Solution
- Step 1: Write the proportion equation
221,138.68 : 305,097.97 = 180,232.47 : x - Step 2: Convert to fraction form
221,138.68/305,097.97 = 180,232.47/x - Step 3: Cross multiply
221,138.68x = 305,097.97 × 180,232.47 - Step 4: Simplify right side
221,138.68x = 54,988,560,950.38 - Step 5: Solve for x
x = 54,988,560,950.38/221,138.68 - Step 6: Final answer
x = 248,660.98
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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.