Finding the Fourth Proportional to 212,245.10, 292,896.60 and 116,749.70
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Solution
The fourth proportional to 212,245.10, 292,896.60 and 116,749.70 is: 161,113.68
Step by Step Solution
- Step 1: Write the proportion equation
212,245.10 : 292,896.60 = 116,749.70 : x - Step 2: Convert to fraction form
212,245.10/292,896.60 = 116,749.70/x - Step 3: Cross multiply
212,245.10x = 292,896.60 × 116,749.70 - Step 4: Simplify right side
212,245.10x = 34,195,590,181.02 - Step 5: Solve for x
x = 34,195,590,181.02/212,245.10 - Step 6: Final answer
x = 161,113.68
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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.