Finding the Fourth Proportional to 379,210.75, 523,310.84 and 209,455.81
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Solution
The fourth proportional to 379,210.75, 523,310.84 and 209,455.81 is: 289,049.02
Step by Step Solution
- Step 1: Write the proportion equation
379,210.75 : 523,310.84 = 209,455.81 : x - Step 2: Convert to fraction form
379,210.75/523,310.84 = 209,455.81/x - Step 3: Cross multiply
379,210.75x = 523,310.84 × 209,455.81 - Step 4: Simplify right side
379,210.75x = 109,610,495,873.98 - Step 5: Solve for x
x = 109,610,495,873.98/379,210.75 - Step 6: Final answer
x = 289,049.02
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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.