Finding the Fourth Proportional to 311,758.47, 467,626.77 and 87,117.12
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Solution
The fourth proportional to 311,758.47, 467,626.77 and 87,117.12 is: 130,672.62
Step by Step Solution
- Step 1: Write the proportion equation
311,758.47 : 467,626.77 = 87,117.12 : x - Step 2: Convert to fraction form
311,758.47/467,626.77 = 87,117.12/x - Step 3: Cross multiply
311,758.47x = 467,626.77 × 87,117.12 - Step 4: Simplify right side
311,758.47x = 40,738,297,437.30 - Step 5: Solve for x
x = 40,738,297,437.30/311,758.47 - Step 6: Final answer
x = 130,672.62
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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.