Finding the Fourth Proportional to 201,716.76, 278,366.88 and 111,070.92
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Solution
The fourth proportional to 201,716.76, 278,366.88 and 111,070.92 is: 153,276.63
Step by Step Solution
- Step 1: Write the proportion equation
201,716.76 : 278,366.88 = 111,070.92 : x - Step 2: Convert to fraction form
201,716.76/278,366.88 = 111,070.92/x - Step 3: Cross multiply
201,716.76x = 278,366.88 × 111,070.92 - Step 4: Simplify right side
201,716.76x = 30,918,465,459.13 - Step 5: Solve for x
x = 30,918,465,459.13/201,716.76 - Step 6: Final answer
x = 153,276.63
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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.