Finding the Fourth Proportional to 207,972.40, 311,375.40 and 202,140.40
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Solution
The fourth proportional to 207,972.40, 311,375.40 and 202,140.40 is: 302,643.75
Step by Step Solution
- Step 1: Write the proportion equation
207,972.40 : 311,375.40 = 202,140.40 : x - Step 2: Convert to fraction form
207,972.40/311,375.40 = 202,140.40/x - Step 3: Cross multiply
207,972.40x = 311,375.40 × 202,140.40 - Step 4: Simplify right side
207,972.40x = 62,941,547,906.16 - Step 5: Solve for x
x = 62,941,547,906.16/207,972.40 - Step 6: Final answer
x = 302,643.75
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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.