Finding the Fourth Proportional to 318,979.26, 478,452.99 and 119,284.96
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Solution
The fourth proportional to 318,979.26, 478,452.99 and 119,284.96 is: 178,921.50
Step by Step Solution
- Step 1: Write the proportion equation
318,979.26 : 478,452.99 = 119,284.96 : x - Step 2: Convert to fraction form
318,979.26/478,452.99 = 119,284.96/x - Step 3: Cross multiply
318,979.26x = 478,452.99 × 119,284.96 - Step 4: Simplify right side
318,979.26x = 57,072,245,924.78 - Step 5: Solve for x
x = 57,072,245,924.78/318,979.26 - Step 6: Final answer
x = 178,921.50
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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.