Finding the Fourth Proportional to 212,520.08, 293,277.26 and 115,722.44
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Solution
The fourth proportional to 212,520.08, 293,277.26 and 115,722.44 is: 159,696.72
Step by Step Solution
- Step 1: Write the proportion equation
212,520.08 : 293,277.26 = 115,722.44 : x - Step 2: Convert to fraction form
212,520.08/293,277.26 = 115,722.44/x - Step 3: Cross multiply
212,520.08x = 293,277.26 × 115,722.44 - Step 4: Simplify right side
212,520.08x = 33,938,758,078.72 - Step 5: Solve for x
x = 33,938,758,078.72/212,520.08 - Step 6: Final answer
x = 159,696.72
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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.