Finding the Fourth Proportional to 239,689.67, 330,891.49 and 149,074.84
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Solution
The fourth proportional to 239,689.67, 330,891.49 and 149,074.84 is: 205,797.75
Step by Step Solution
- Step 1: Write the proportion equation
239,689.67 : 330,891.49 = 149,074.84 : x - Step 2: Convert to fraction form
239,689.67/330,891.49 = 149,074.84/x - Step 3: Cross multiply
239,689.67x = 330,891.49 × 149,074.84 - Step 4: Simplify right side
239,689.67x = 49,327,595,929.11 - Step 5: Solve for x
x = 49,327,595,929.11/239,689.67 - Step 6: Final answer
x = 205,797.75
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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.