Finding the Fourth Proportional to 212,791.12, 293,653.77 and 117,301.23
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Solution
The fourth proportional to 212,791.12, 293,653.77 and 117,301.23 is: 161,876.82
Step by Step Solution
- Step 1: Write the proportion equation
212,791.12 : 293,653.77 = 117,301.23 : x - Step 2: Convert to fraction form
212,791.12/293,653.77 = 117,301.23/x - Step 3: Cross multiply
212,791.12x = 293,653.77 × 117,301.23 - Step 4: Simplify right side
212,791.12x = 34,445,949,076.46 - Step 5: Solve for x
x = 34,445,949,076.46/212,791.12 - Step 6: Final answer
x = 161,876.82
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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.