Finding the Fourth Proportional to 381,661.80, 526,672.71 and 211,884.99
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Solution
The fourth proportional to 381,661.80, 526,672.71 and 211,884.99 is: 292,389.86
Step by Step Solution
- Step 1: Write the proportion equation
381,661.80 : 526,672.71 = 211,884.99 : x - Step 2: Convert to fraction form
381,661.80/526,672.71 = 211,884.99/x - Step 3: Cross multiply
381,661.80x = 526,672.71 × 211,884.99 - Step 4: Simplify right side
381,661.80x = 111,594,041,891.62 - Step 5: Solve for x
x = 111,594,041,891.62/381,661.80 - Step 6: Final answer
x = 292,389.86
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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.