Finding the Fourth Proportional to 207,669.80, 311,504.70 and 154,525.70
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Solution
The fourth proportional to 207,669.80, 311,504.70 and 154,525.70 is: 231,788.55
Step by Step Solution
- Step 1: Write the proportion equation
207,669.80 : 311,504.70 = 154,525.70 : x - Step 2: Convert to fraction form
207,669.80/311,504.70 = 154,525.70/x - Step 3: Cross multiply
207,669.80x = 311,504.70 × 154,525.70 - Step 4: Simplify right side
207,669.80x = 48,135,481,820.79 - Step 5: Solve for x
x = 48,135,481,820.79/207,669.80 - Step 6: Final answer
x = 231,788.55
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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.