Finding the Fourth Proportional to 207,366.55, 311,170.80 and 87,416.21
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Solution
The fourth proportional to 207,366.55, 311,170.80 and 87,416.21 is: 131,175.31
Step by Step Solution
- Step 1: Write the proportion equation
207,366.55 : 311,170.80 = 87,416.21 : x - Step 2: Convert to fraction form
207,366.55/311,170.80 = 87,416.21/x - Step 3: Cross multiply
207,366.55x = 311,170.80 × 87,416.21 - Step 4: Simplify right side
207,366.55x = 27,201,371,998.67 - Step 5: Solve for x
x = 27,201,371,998.67/207,366.55 - Step 6: Final answer
x = 131,175.31
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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.