Finding the Fourth Proportional to 436,868.36, 655,340.40 and 133,330.80
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Solution
The fourth proportional to 436,868.36, 655,340.40 and 133,330.80 is: 200,007.75
Step by Step Solution
- Step 1: Write the proportion equation
436,868.36 : 655,340.40 = 133,330.80 : x - Step 2: Convert to fraction form
436,868.36/655,340.40 = 133,330.80/x - Step 3: Cross multiply
436,868.36x = 655,340.40 × 133,330.80 - Step 4: Simplify right side
436,868.36x = 87,377,057,278.99 - Step 5: Solve for x
x = 87,377,057,278.99/436,868.36 - Step 6: Final answer
x = 200,007.75
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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.