Finding the Fourth Proportional to 221,573.68, 305,770.11 and 120,971.68
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Solution
The fourth proportional to 221,573.68, 305,770.11 and 120,971.68 is: 166,940.06
Step by Step Solution
- Step 1: Write the proportion equation
221,573.68 : 305,770.11 = 120,971.68 : x - Step 2: Convert to fraction form
221,573.68/305,770.11 = 120,971.68/x - Step 3: Cross multiply
221,573.68x = 305,770.11 × 120,971.68 - Step 4: Simplify right side
221,573.68x = 36,989,523,900.48 - Step 5: Solve for x
x = 36,989,523,900.48/221,573.68 - Step 6: Final answer
x = 166,940.06
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.