Finding the Fourth Proportional to 220,570.40, 331,201.20 and 127,258.40
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Solution
The fourth proportional to 220,570.40, 331,201.20 and 127,258.40 is: 191,086.99
Step by Step Solution
- Step 1: Write the proportion equation
220,570.40 : 331,201.20 = 127,258.40 : x - Step 2: Convert to fraction form
220,570.40/331,201.20 = 127,258.40/x - Step 3: Cross multiply
220,570.40x = 331,201.20 × 127,258.40 - Step 4: Simplify right side
220,570.40x = 42,148,134,790.08 - Step 5: Solve for x
x = 42,148,134,790.08/220,570.40 - Step 6: Final answer
x = 191,086.99
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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.