Finding the Fourth Proportional to 352,818.18, 486,930.84 and 209,578.80
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Solution
The fourth proportional to 352,818.18, 486,930.84 and 209,578.80 is: 289,243.55
Step by Step Solution
- Step 1: Write the proportion equation
352,818.18 : 486,930.84 = 209,578.80 : x - Step 2: Convert to fraction form
352,818.18/486,930.84 = 209,578.80/x - Step 3: Cross multiply
352,818.18x = 486,930.84 × 209,578.80 - Step 4: Simplify right side
352,818.18x = 102,050,381,130.19 - Step 5: Solve for x
x = 102,050,381,130.19/352,818.18 - Step 6: Final answer
x = 289,243.55
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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.