Finding the Fourth Proportional to 312,442.11, 431,177.99 and 191,650.00
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Solution
The fourth proportional to 312,442.11, 431,177.99 and 191,650.00 is: 264,481.83
Step by Step Solution
- Step 1: Write the proportion equation
312,442.11 : 431,177.99 = 191,650.00 : x - Step 2: Convert to fraction form
312,442.11/431,177.99 = 191,650.00/x - Step 3: Cross multiply
312,442.11x = 431,177.99 × 191,650.00 - Step 4: Simplify right side
312,442.11x = 82,635,260,555.76 - Step 5: Solve for x
x = 82,635,260,555.76/312,442.11 - Step 6: Final answer
x = 264,481.83
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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.