Finding the Fourth Proportional to 305,682.62, 458,615.05 and 145,878.53
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Solution
The fourth proportional to 305,682.62, 458,615.05 and 145,878.53 is: 218,861.27
Step by Step Solution
- Step 1: Write the proportion equation
305,682.62 : 458,615.05 = 145,878.53 : x - Step 2: Convert to fraction form
305,682.62/458,615.05 = 145,878.53/x - Step 3: Cross multiply
305,682.62x = 458,615.05 × 145,878.53 - Step 4: Simplify right side
305,682.62x = 66,902,086,672.10 - Step 5: Solve for x
x = 66,902,086,672.10/305,682.62 - Step 6: Final answer
x = 218,861.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.