Finding the Fourth Proportional to 290,115.36, 435,163.88 and 79,751.52
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Solution
The fourth proportional to 290,115.36, 435,163.88 and 79,751.52 is: 119,624.76
Step by Step Solution
- Step 1: Write the proportion equation
290,115.36 : 435,163.88 = 79,751.52 : x - Step 2: Convert to fraction form
290,115.36/435,163.88 = 79,751.52/x - Step 3: Cross multiply
290,115.36x = 435,163.88 × 79,751.52 - Step 4: Simplify right side
290,115.36x = 34,704,980,879.10 - Step 5: Solve for x
x = 34,704,980,879.10/290,115.36 - Step 6: Final answer
x = 119,624.76
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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.