Finding the Fourth Proportional to 221,561.17, 305,752.84 and 120,959.17
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Solution
The fourth proportional to 221,561.17, 305,752.84 and 120,959.17 is: 166,922.79
Step by Step Solution
- Step 1: Write the proportion equation
221,561.17 : 305,752.84 = 120,959.17 : x - Step 2: Convert to fraction form
221,561.17/305,752.84 = 120,959.17/x - Step 3: Cross multiply
221,561.17x = 305,752.84 × 120,959.17 - Step 4: Simplify right side
221,561.17x = 36,983,609,751.54 - Step 5: Solve for x
x = 36,983,609,751.54/221,561.17 - Step 6: Final answer
x = 166,922.79
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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.