Finding the Fourth Proportional to 201,770.75, 278,463.09 and 112,346.75
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Solution
The fourth proportional to 201,770.75, 278,463.09 and 112,346.75 is: 155,049.35
Step by Step Solution
- Step 1: Write the proportion equation
201,770.75 : 278,463.09 = 112,346.75 : x - Step 2: Convert to fraction form
201,770.75/278,463.09 = 112,346.75/x - Step 3: Cross multiply
201,770.75x = 278,463.09 × 112,346.75 - Step 4: Simplify right side
201,770.75x = 31,284,423,156.46 - Step 5: Solve for x
x = 31,284,423,156.46/201,770.75 - Step 6: Final answer
x = 155,049.35
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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.