Finding the Fourth Proportional to 203,986.28, 281,410.50 and 135,936.97
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Solution
The fourth proportional to 203,986.28, 281,410.50 and 135,936.97 is: 187,532.66
Step by Step Solution
- Step 1: Write the proportion equation
203,986.28 : 281,410.50 = 135,936.97 : x - Step 2: Convert to fraction form
203,986.28/281,410.50 = 135,936.97/x - Step 3: Cross multiply
203,986.28x = 281,410.50 × 135,936.97 - Step 4: Simplify right side
203,986.28x = 38,254,090,696.19 - Step 5: Solve for x
x = 38,254,090,696.19/203,986.28 - Step 6: Final answer
x = 187,532.66
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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.