Finding the Fourth Proportional to 221,220.96, 331,831.68 and 55,008.96
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Solution
The fourth proportional to 221,220.96, 331,831.68 and 55,008.96 is: 82,513.50
Step by Step Solution
- Step 1: Write the proportion equation
221,220.96 : 331,831.68 = 55,008.96 : x - Step 2: Convert to fraction form
221,220.96/331,831.68 = 55,008.96/x - Step 3: Cross multiply
221,220.96x = 331,831.68 × 55,008.96 - Step 4: Simplify right side
221,220.96x = 18,253,715,611.85 - Step 5: Solve for x
x = 18,253,715,611.85/221,220.96 - Step 6: Final answer
x = 82,513.50
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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.