Finding the Fourth Proportional to 212,755.14, 293,601.21 and 117,261.81
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Solution
The fourth proportional to 212,755.14, 293,601.21 and 117,261.81 is: 161,820.81
Step by Step Solution
- Step 1: Write the proportion equation
212,755.14 : 293,601.21 = 117,261.81 : x - Step 2: Convert to fraction form
212,755.14/293,601.21 = 117,261.81/x - Step 3: Cross multiply
212,755.14x = 293,601.21 × 117,261.81 - Step 4: Simplify right side
212,755.14x = 34,428,208,863.06 - Step 5: Solve for x
x = 34,428,208,863.06/212,755.14 - Step 6: Final answer
x = 161,820.81
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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.