Finding the Fourth Proportional to 221,474.29, 305,528.21 and 144,959.70
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Solution
The fourth proportional to 221,474.29, 305,528.21 and 144,959.70 is: 199,974.80
Step by Step Solution
- Step 1: Write the proportion equation
221,474.29 : 305,528.21 = 144,959.70 : x - Step 2: Convert to fraction form
221,474.29/305,528.21 = 144,959.70/x - Step 3: Cross multiply
221,474.29x = 305,528.21 × 144,959.70 - Step 4: Simplify right side
221,474.29x = 44,289,277,663.14 - Step 5: Solve for x
x = 44,289,277,663.14/221,474.29 - Step 6: Final answer
x = 199,974.80
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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.