Finding the Fourth Proportional to 207,569.12, 311,353.99 and 57,809.84
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Solution
The fourth proportional to 207,569.12, 311,353.99 and 57,809.84 is: 86,714.85
Step by Step Solution
- Step 1: Write the proportion equation
207,569.12 : 311,353.99 = 57,809.84 : x - Step 2: Convert to fraction form
207,569.12/311,353.99 = 57,809.84/x - Step 3: Cross multiply
207,569.12x = 311,353.99 × 57,809.84 - Step 4: Simplify right side
207,569.12x = 17,999,324,979.12 - Step 5: Solve for x
x = 17,999,324,979.12/207,569.12 - Step 6: Final answer
x = 86,714.85
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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.