Finding the Fourth Proportional to 221,193.75, 331,791.84 and 54,981.75
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Solution
The fourth proportional to 221,193.75, 331,791.84 and 54,981.75 is: 82,472.93
Step by Step Solution
- Step 1: Write the proportion equation
221,193.75 : 331,791.84 = 54,981.75 : x - Step 2: Convert to fraction form
221,193.75/331,791.84 = 54,981.75/x - Step 3: Cross multiply
221,193.75x = 331,791.84 × 54,981.75 - Step 4: Simplify right side
221,193.75x = 18,242,495,998.92 - Step 5: Solve for x
x = 18,242,495,998.92/221,193.75 - Step 6: Final answer
x = 82,472.93
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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.