Finding the Fourth Proportional to 371,891.76, 513,206.78 and 202,124.67
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Solution
The fourth proportional to 371,891.76, 513,206.78 and 202,124.67 is: 278,929.95
Step by Step Solution
- Step 1: Write the proportion equation
371,891.76 : 513,206.78 = 202,124.67 : x - Step 2: Convert to fraction form
371,891.76/513,206.78 = 202,124.67/x - Step 3: Cross multiply
371,891.76x = 513,206.78 × 202,124.67 - Step 4: Simplify right side
371,891.76x = 103,731,751,049.26 - Step 5: Solve for x
x = 103,731,751,049.26/371,891.76 - Step 6: Final answer
x = 278,929.95
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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.