Finding the Fourth Proportional to 313,986.16, 471,000.84 and 103,771.72
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Solution
The fourth proportional to 313,986.16, 471,000.84 and 103,771.72 is: 155,664.72
Step by Step Solution
- Step 1: Write the proportion equation
313,986.16 : 471,000.84 = 103,771.72 : x - Step 2: Convert to fraction form
313,986.16/471,000.84 = 103,771.72/x - Step 3: Cross multiply
313,986.16x = 471,000.84 × 103,771.72 - Step 4: Simplify right side
313,986.16x = 48,876,567,288.24 - Step 5: Solve for x
x = 48,876,567,288.24/313,986.16 - Step 6: Final answer
x = 155,664.72
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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.