Finding the Fourth Proportional to 201,861.90, 278,602.17 and 117,028.02
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Solution
The fourth proportional to 201,861.90, 278,602.17 and 117,028.02 is: 161,517.65
Step by Step Solution
- Step 1: Write the proportion equation
201,861.90 : 278,602.17 = 117,028.02 : x - Step 2: Convert to fraction form
201,861.90/278,602.17 = 117,028.02/x - Step 3: Cross multiply
201,861.90x = 278,602.17 × 117,028.02 - Step 4: Simplify right side
201,861.90x = 32,604,260,322.80 - Step 5: Solve for x
x = 32,604,260,322.80/201,861.90 - Step 6: Final answer
x = 161,517.65
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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.