Finding the Fourth Proportional to 235,291.21, 352,780.79 and 85,513.70
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Solution
The fourth proportional to 235,291.21, 352,780.79 and 85,513.70 is: 128,213.85
Step by Step Solution
- Step 1: Write the proportion equation
235,291.21 : 352,780.79 = 85,513.70 : x - Step 2: Convert to fraction form
235,291.21/352,780.79 = 85,513.70/x - Step 3: Cross multiply
235,291.21x = 352,780.79 × 85,513.70 - Step 4: Simplify right side
235,291.21x = 30,167,591,096.21 - Step 5: Solve for x
x = 30,167,591,096.21/235,291.21 - Step 6: Final answer
x = 128,213.85
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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.