Finding the Fourth Proportional to 212,791.68, 293,653.48 and 117,296.32
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Solution
The fourth proportional to 212,791.68, 293,653.48 and 117,296.32 is: 161,869.45
Step by Step Solution
- Step 1: Write the proportion equation
212,791.68 : 293,653.48 = 117,296.32 : x - Step 2: Convert to fraction form
212,791.68/293,653.48 = 117,296.32/x - Step 3: Cross multiply
212,791.68x = 293,653.48 × 117,296.32 - Step 4: Simplify right side
212,791.68x = 34,444,472,559.19 - Step 5: Solve for x
x = 34,444,472,559.19/212,791.68 - Step 6: Final answer
x = 161,869.45
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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.