Finding the Fourth Proportional to 201,748.60, 278,437.53 and 121,218.40
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Solution
The fourth proportional to 201,748.60, 278,437.53 and 121,218.40 is: 167,296.09
Step by Step Solution
- Step 1: Write the proportion equation
201,748.60 : 278,437.53 = 121,218.40 : x - Step 2: Convert to fraction form
201,748.60/278,437.53 = 121,218.40/x - Step 3: Cross multiply
201,748.60x = 278,437.53 × 121,218.40 - Step 4: Simplify right side
201,748.60x = 33,751,751,886.55 - Step 5: Solve for x
x = 33,751,751,886.55/201,748.60 - Step 6: Final answer
x = 167,296.09
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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.