Finding the Fourth Proportional to 212,440.82, 318,544.73 and 84,227.21
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Solution
The fourth proportional to 212,440.82, 318,544.73 and 84,227.21 is: 126,294.62
Step by Step Solution
- Step 1: Write the proportion equation
212,440.82 : 318,544.73 = 84,227.21 : x - Step 2: Convert to fraction form
212,440.82/318,544.73 = 84,227.21/x - Step 3: Cross multiply
212,440.82x = 318,544.73 × 84,227.21 - Step 4: Simplify right side
212,440.82x = 26,830,131,854.24 - Step 5: Solve for x
x = 26,830,131,854.24/212,440.82 - Step 6: Final answer
x = 126,294.62
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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.