Finding the Fourth Proportional to 205,133.40, 307,700.10 and 72,163.80
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Solution
The fourth proportional to 205,133.40, 307,700.10 and 72,163.80 is: 108,245.70
Step by Step Solution
- Step 1: Write the proportion equation
205,133.40 : 307,700.10 = 72,163.80 : x - Step 2: Convert to fraction form
205,133.40/307,700.10 = 72,163.80/x - Step 3: Cross multiply
205,133.40x = 307,700.10 × 72,163.80 - Step 4: Simplify right side
205,133.40x = 22,204,808,476.38 - Step 5: Solve for x
x = 22,204,808,476.38/205,133.40 - Step 6: Final answer
x = 108,245.70
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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.