Finding the Fourth Proportional to 209,490.58, 314,236.51 and 51,719.05
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Solution
The fourth proportional to 209,490.58, 314,236.51 and 51,719.05 is: 77,578.73
Step by Step Solution
- Step 1: Write the proportion equation
209,490.58 : 314,236.51 = 51,719.05 : x - Step 2: Convert to fraction form
209,490.58/314,236.51 = 51,719.05/x - Step 3: Cross multiply
209,490.58x = 314,236.51 × 51,719.05 - Step 4: Simplify right side
209,490.58x = 16,252,013,116.22 - Step 5: Solve for x
x = 16,252,013,116.22/209,490.58 - Step 6: Final answer
x = 77,578.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.