Finding the Fourth Proportional to 381,766.36, 526,843.92 and 209,700.23
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Solution
The fourth proportional to 381,766.36, 526,843.92 and 209,700.23 is: 289,389.81
Step by Step Solution
- Step 1: Write the proportion equation
381,766.36 : 526,843.92 = 209,700.23 : x - Step 2: Convert to fraction form
381,766.36/526,843.92 = 209,700.23/x - Step 3: Cross multiply
381,766.36x = 526,843.92 × 209,700.23 - Step 4: Simplify right side
381,766.36x = 110,479,292,515.21 - Step 5: Solve for x
x = 110,479,292,515.21/381,766.36 - Step 6: Final answer
x = 289,389.81
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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.