Finding the Fourth Proportional to 207,198.21, 310,797.31 and 137,061.12
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Solution
The fourth proportional to 207,198.21, 310,797.31 and 137,061.12 is: 205,591.68
Step by Step Solution
- Step 1: Write the proportion equation
207,198.21 : 310,797.31 = 137,061.12 : x - Step 2: Convert to fraction form
207,198.21/310,797.31 = 137,061.12/x - Step 3: Cross multiply
207,198.21x = 310,797.31 × 137,061.12 - Step 4: Simplify right side
207,198.21x = 42,598,227,401.59 - Step 5: Solve for x
x = 42,598,227,401.59/207,198.21 - Step 6: Final answer
x = 205,591.68
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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.