Finding the Fourth Proportional to 203,911.57, 281,476.47 and 135,903.70
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Solution
The fourth proportional to 203,911.57, 281,476.47 and 135,903.70 is: 187,599.43
Step by Step Solution
- Step 1: Write the proportion equation
203,911.57 : 281,476.47 = 135,903.70 : x - Step 2: Convert to fraction form
203,911.57/281,476.47 = 135,903.70/x - Step 3: Cross multiply
203,911.57x = 281,476.47 × 135,903.70 - Step 4: Simplify right side
203,911.57x = 38,253,693,735.94 - Step 5: Solve for x
x = 38,253,693,735.94/203,911.57 - Step 6: Final answer
x = 187,599.43
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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.