Finding the Fourth Proportional to 218,202.78, 301,093.39 and 121,383.75
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Solution
The fourth proportional to 218,202.78, 301,093.39 and 121,383.75 is: 167,494.87
Step by Step Solution
- Step 1: Write the proportion equation
218,202.78 : 301,093.39 = 121,383.75 : x - Step 2: Convert to fraction form
218,202.78/301,093.39 = 121,383.75/x - Step 3: Cross multiply
218,202.78x = 301,093.39 × 121,383.75 - Step 4: Simplify right side
218,202.78x = 36,547,845,749.44 - Step 5: Solve for x
x = 36,547,845,749.44/218,202.78 - Step 6: Final answer
x = 167,494.87
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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.