Finding the Fourth Proportional to 149,631.96, 206,765.82 and 142,342.68
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Solution
The fourth proportional to 149,631.96, 206,765.82 and 142,342.68 is: 196,693.28
Step by Step Solution
- Step 1: Write the proportion equation
149,631.96 : 206,765.82 = 142,342.68 : x - Step 2: Convert to fraction form
149,631.96/206,765.82 = 142,342.68/x - Step 3: Cross multiply
149,631.96x = 206,765.82 × 142,342.68 - Step 4: Simplify right side
149,631.96x = 29,431,600,951.20 - Step 5: Solve for x
x = 29,431,600,951.20/149,631.96 - Step 6: Final answer
x = 196,693.28
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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.