Finding the Fourth Proportional to 212,432.93, 293,161.17 and 115,639.56
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Solution
The fourth proportional to 212,432.93, 293,161.17 and 115,639.56 is: 159,584.63
Step by Step Solution
- Step 1: Write the proportion equation
212,432.93 : 293,161.17 = 115,639.56 : x - Step 2: Convert to fraction form
212,432.93/293,161.17 = 115,639.56/x - Step 3: Cross multiply
212,432.93x = 293,161.17 × 115,639.56 - Step 4: Simplify right side
212,432.93x = 33,901,028,862.59 - Step 5: Solve for x
x = 33,901,028,862.59/212,432.93 - Step 6: Final answer
x = 159,584.63
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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.