Finding the Fourth Proportional to 379,108.35, 568,742.72 and 142,453.08
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Solution
The fourth proportional to 379,108.35, 568,742.72 and 142,453.08 is: 213,709.75
Step by Step Solution
- Step 1: Write the proportion equation
379,108.35 : 568,742.72 = 142,453.08 : x - Step 2: Convert to fraction form
379,108.35/568,742.72 = 142,453.08/x - Step 3: Cross multiply
379,108.35x = 568,742.72 × 142,453.08 - Step 4: Simplify right side
379,108.35x = 81,019,151,479.31 - Step 5: Solve for x
x = 81,019,151,479.31/379,108.35 - Step 6: Final answer
x = 213,709.75
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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.