Finding the Fourth Proportional to 318,981.26, 478,455.99 and 119,286.96
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Solution
The fourth proportional to 318,981.26, 478,455.99 and 119,286.96 is: 178,924.49
Step by Step Solution
- Step 1: Write the proportion equation
318,981.26 : 478,455.99 = 119,286.96 : x - Step 2: Convert to fraction form
318,981.26/478,455.99 = 119,286.96/x - Step 3: Cross multiply
318,981.26x = 478,455.99 × 119,286.96 - Step 4: Simplify right side
318,981.26x = 57,073,560,540.89 - Step 5: Solve for x
x = 57,073,560,540.89/318,981.26 - Step 6: Final answer
x = 178,924.49
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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.