Finding the Fourth Proportional to 212,082.64, 292,674.66 and 121,439.98
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Solution
The fourth proportional to 212,082.64, 292,674.66 and 121,439.98 is: 167,587.53
Step by Step Solution
- Step 1: Write the proportion equation
212,082.64 : 292,674.66 = 121,439.98 : x - Step 2: Convert to fraction form
212,082.64/292,674.66 = 121,439.98/x - Step 3: Cross multiply
212,082.64x = 292,674.66 × 121,439.98 - Step 4: Simplify right side
212,082.64x = 35,542,404,856.91 - Step 5: Solve for x
x = 35,542,404,856.91/212,082.64 - Step 6: Final answer
x = 167,587.53
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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.