Finding the Fourth Proportional to 212,310.53, 292,996.60 and 121,683.98
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Solution
The fourth proportional to 212,310.53, 292,996.60 and 121,683.98 is: 167,928.52
Step by Step Solution
- Step 1: Write the proportion equation
212,310.53 : 292,996.60 = 121,683.98 : x - Step 2: Convert to fraction form
212,310.53/292,996.60 = 121,683.98/x - Step 3: Cross multiply
212,310.53x = 292,996.60 × 121,683.98 - Step 4: Simplify right side
212,310.53x = 35,652,992,414.47 - Step 5: Solve for x
x = 35,652,992,414.47/212,310.53 - Step 6: Final answer
x = 167,928.52
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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.