Finding the Fourth Proportional to 207,603.40, 311,405.10 and 132,953.80
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Solution
The fourth proportional to 207,603.40, 311,405.10 and 132,953.80 is: 199,430.70
Step by Step Solution
- Step 1: Write the proportion equation
207,603.40 : 311,405.10 = 132,953.80 : x - Step 2: Convert to fraction form
207,603.40/311,405.10 = 132,953.80/x - Step 3: Cross multiply
207,603.40x = 311,405.10 × 132,953.80 - Step 4: Simplify right side
207,603.40x = 41,402,491,384.38 - Step 5: Solve for x
x = 41,402,491,384.38/207,603.40 - Step 6: Final answer
x = 199,430.70
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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.