Finding the Fourth Proportional to 379,286.16, 568,491.24 and 142,477.68
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Solution
The fourth proportional to 379,286.16, 568,491.24 and 142,477.68 is: 213,551.99
Step by Step Solution
- Step 1: Write the proportion equation
379,286.16 : 568,491.24 = 142,477.68 : x - Step 2: Convert to fraction form
379,286.16/568,491.24 = 142,477.68/x - Step 3: Cross multiply
379,286.16x = 568,491.24 × 142,477.68 - Step 4: Simplify right side
379,286.16x = 80,997,312,975.52 - Step 5: Solve for x
x = 80,997,312,975.52/379,286.16 - Step 6: Final answer
x = 213,551.99
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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.