Finding the Fourth Proportional to 212,182.82, 292,815.86 and 121,546.71
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Solution
The fourth proportional to 212,182.82, 292,815.86 and 121,546.71 is: 167,736.50
Step by Step Solution
- Step 1: Write the proportion equation
212,182.82 : 292,815.86 = 121,546.71 : x - Step 2: Convert to fraction form
212,182.82/292,815.86 = 121,546.71/x - Step 3: Cross multiply
212,182.82x = 292,815.86 × 121,546.71 - Step 4: Simplify right side
212,182.82x = 35,590,804,418.82 - Step 5: Solve for x
x = 35,590,804,418.82/212,182.82 - Step 6: Final answer
x = 167,736.50
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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.