Finding the Fourth Proportional to 270,476.80, 405,715.20 and 207,491.20
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Solution
The fourth proportional to 270,476.80, 405,715.20 and 207,491.20 is: 311,236.80
Step by Step Solution
- Step 1: Write the proportion equation
270,476.80 : 405,715.20 = 207,491.20 : x - Step 2: Convert to fraction form
270,476.80/405,715.20 = 207,491.20/x - Step 3: Cross multiply
270,476.80x = 405,715.20 × 207,491.20 - Step 4: Simplify right side
270,476.80x = 84,182,333,706.24 - Step 5: Solve for x
x = 84,182,333,706.24/270,476.80 - Step 6: Final answer
x = 311,236.80
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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.