Finding the Fourth Proportional to 202,753.20, 304,129.80 and 91,945.20
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Solution
The fourth proportional to 202,753.20, 304,129.80 and 91,945.20 is: 137,917.80
Step by Step Solution
- Step 1: Write the proportion equation
202,753.20 : 304,129.80 = 91,945.20 : x - Step 2: Convert to fraction form
202,753.20/304,129.80 = 91,945.20/x - Step 3: Cross multiply
202,753.20x = 304,129.80 × 91,945.20 - Step 4: Simplify right side
202,753.20x = 27,963,275,286.96 - Step 5: Solve for x
x = 27,963,275,286.96/202,753.20 - Step 6: Final answer
x = 137,917.80
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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.