Finding the Fourth Proportional to 318,436.99, 477,639.84 and 118,741.75
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Solution
The fourth proportional to 318,436.99, 477,639.84 and 118,741.75 is: 178,106.79
Step by Step Solution
- Step 1: Write the proportion equation
318,436.99 : 477,639.84 = 118,741.75 : x - Step 2: Convert to fraction form
318,436.99/477,639.84 = 118,741.75/x - Step 3: Cross multiply
318,436.99x = 477,639.84 × 118,741.75 - Step 4: Simplify right side
318,436.99x = 56,715,790,471.32 - Step 5: Solve for x
x = 56,715,790,471.32/318,436.99 - Step 6: Final answer
x = 178,106.79
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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.