Finding the Fourth Proportional to 235,478.24, 353,311.67 and 85,728.88
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Solution
The fourth proportional to 235,478.24, 353,311.67 and 85,728.88 is: 128,627.66
Step by Step Solution
- Step 1: Write the proportion equation
235,478.24 : 353,311.67 = 85,728.88 : x - Step 2: Convert to fraction form
235,478.24/353,311.67 = 85,728.88/x - Step 3: Cross multiply
235,478.24x = 353,311.67 × 85,728.88 - Step 4: Simplify right side
235,478.24x = 30,289,014,415.99 - Step 5: Solve for x
x = 30,289,014,415.99/235,478.24 - Step 6: Final answer
x = 128,627.66
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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.