Finding the Fourth Proportional to 221,107.92, 305,034.36 and 144,494.05
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Solution
The fourth proportional to 221,107.92, 305,034.36 and 144,494.05 is: 199,339.99
Step by Step Solution
- Step 1: Write the proportion equation
221,107.92 : 305,034.36 = 144,494.05 : x - Step 2: Convert to fraction form
221,107.92/305,034.36 = 144,494.05/x - Step 3: Cross multiply
221,107.92x = 305,034.36 × 144,494.05 - Step 4: Simplify right side
221,107.92x = 44,075,650,065.56 - Step 5: Solve for x
x = 44,075,650,065.56/221,107.92 - Step 6: Final answer
x = 199,339.99
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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.