Finding the Fourth Proportional to 245,142.68, 367,503.42 and 85,197.84
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Solution
The fourth proportional to 245,142.68, 367,503.42 and 85,197.84 is: 127,723.56
Step by Step Solution
- Step 1: Write the proportion equation
245,142.68 : 367,503.42 = 85,197.84 : x - Step 2: Convert to fraction form
245,142.68/367,503.42 = 85,197.84/x - Step 3: Cross multiply
245,142.68x = 367,503.42 × 85,197.84 - Step 4: Simplify right side
245,142.68x = 31,310,495,739.10 - Step 5: Solve for x
x = 31,310,495,739.10/245,142.68 - Step 6: Final answer
x = 127,723.56
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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.