Finding the Fourth Proportional to 207,969.70, 311,954.55 and 199,221.70
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Solution
The fourth proportional to 207,969.70, 311,954.55 and 199,221.70 is: 298,832.55
Step by Step Solution
- Step 1: Write the proportion equation
207,969.70 : 311,954.55 = 199,221.70 : x - Step 2: Convert to fraction form
207,969.70/311,954.55 = 199,221.70/x - Step 3: Cross multiply
207,969.70x = 311,954.55 × 199,221.70 - Step 4: Simplify right side
207,969.70x = 62,148,115,773.74 - Step 5: Solve for x
x = 62,148,115,773.74/207,969.70 - Step 6: Final answer
x = 298,832.55
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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.