Finding the Fourth Proportional to 318,138.48, 477,133.92 and 140,548.68
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Solution
The fourth proportional to 318,138.48, 477,133.92 and 140,548.68 is: 210,790.42
Step by Step Solution
- Step 1: Write the proportion equation
318,138.48 : 477,133.92 = 140,548.68 : x - Step 2: Convert to fraction form
318,138.48/477,133.92 = 140,548.68/x - Step 3: Cross multiply
318,138.48x = 477,133.92 × 140,548.68 - Step 4: Simplify right side
318,138.48x = 67,060,542,639.23 - Step 5: Solve for x
x = 67,060,542,639.23/318,138.48 - Step 6: Final answer
x = 210,790.42
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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.