Finding the Fourth Proportional to 379,296.16, 523,409.36 and 209,497.44
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Solution
The fourth proportional to 379,296.16, 523,409.36 and 209,497.44 is: 289,095.78
Step by Step Solution
- Step 1: Write the proportion equation
379,296.16 : 523,409.36 = 209,497.44 : x - Step 2: Convert to fraction form
379,296.16/523,409.36 = 209,497.44/x - Step 3: Cross multiply
379,296.16x = 523,409.36 × 209,497.44 - Step 4: Simplify right side
379,296.16x = 109,652,920,992.04 - Step 5: Solve for x
x = 109,652,920,992.04/379,296.16 - Step 6: Final answer
x = 289,095.78
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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.