Finding the Fourth Proportional to 203,860.40, 305,644.80 and 91,448.60
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Solution
The fourth proportional to 203,860.40, 305,644.80 and 91,448.60 is: 137,107.50
Step by Step Solution
- Step 1: Write the proportion equation
203,860.40 : 305,644.80 = 91,448.60 : x - Step 2: Convert to fraction form
203,860.40/305,644.80 = 91,448.60/x - Step 3: Cross multiply
203,860.40x = 305,644.80 × 91,448.60 - Step 4: Simplify right side
203,860.40x = 27,950,789,057.28 - Step 5: Solve for x
x = 27,950,789,057.28/203,860.40 - Step 6: Final answer
x = 137,107.50
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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.