Finding the Fourth Proportional to 207,809.80, 311,714.70 and 207,809.80
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Solution
The fourth proportional to 207,809.80, 311,714.70 and 207,809.80 is: 311,714.70
Step by Step Solution
- Step 1: Write the proportion equation
207,809.80 : 311,714.70 = 207,809.80 : x - Step 2: Convert to fraction form
207,809.80/311,714.70 = 207,809.80/x - Step 3: Cross multiply
207,809.80x = 311,714.70 × 207,809.80 - Step 4: Simplify right side
207,809.80x = 64,777,369,464.06 - Step 5: Solve for x
x = 64,777,369,464.06/207,809.80 - Step 6: Final answer
x = 311,714.70
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1.5x scale
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.