Finding the Fourth Proportional to 207,957.70, 311,936.55 and 181,713.70
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Solution
The fourth proportional to 207,957.70, 311,936.55 and 181,713.70 is: 272,570.55
Step by Step Solution
- Step 1: Write the proportion equation
207,957.70 : 311,936.55 = 181,713.70 : x - Step 2: Convert to fraction form
207,957.70/311,936.55 = 181,713.70/x - Step 3: Cross multiply
207,957.70x = 311,936.55 × 181,713.70 - Step 4: Simplify right side
207,957.70x = 56,683,144,665.74 - Step 5: Solve for x
x = 56,683,144,665.74/207,957.70 - Step 6: Final answer
x = 272,570.55
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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.