Finding the Fourth Proportional to 208,956.06, 288,365.31 and 122,921.37
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Solution
The fourth proportional to 208,956.06, 288,365.31 and 122,921.37 is: 169,634.99
Step by Step Solution
- Step 1: Write the proportion equation
208,956.06 : 288,365.31 = 122,921.37 : x - Step 2: Convert to fraction form
208,956.06/288,365.31 = 122,921.37/x - Step 3: Cross multiply
208,956.06x = 288,365.31 × 122,921.37 - Step 4: Simplify right side
208,956.06x = 35,446,258,965.67 - Step 5: Solve for x
x = 35,446,258,965.67/208,956.06 - Step 6: Final answer
x = 169,634.99
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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.