Finding the Fourth Proportional to 512,231.67, 768,349.35 and 157,245.71
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Solution
The fourth proportional to 512,231.67, 768,349.35 and 157,245.71 is: 235,869.12
Step by Step Solution
- Step 1: Write the proportion equation
512,231.67 : 768,349.35 = 157,245.71 : x - Step 2: Convert to fraction form
512,231.67/768,349.35 = 157,245.71/x - Step 3: Cross multiply
512,231.67x = 768,349.35 × 157,245.71 - Step 4: Simplify right side
512,231.67x = 120,819,635,227.04 - Step 5: Solve for x
x = 120,819,635,227.04/512,231.67 - Step 6: Final answer
x = 235,869.12
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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.