Finding the Fourth Proportional to 287,651.70, 431,477.55 and 235,163.70
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Solution
The fourth proportional to 287,651.70, 431,477.55 and 235,163.70 is: 352,745.55
Step by Step Solution
- Step 1: Write the proportion equation
287,651.70 : 431,477.55 = 235,163.70 : x - Step 2: Convert to fraction form
287,651.70/431,477.55 = 235,163.70/x - Step 3: Cross multiply
287,651.70x = 431,477.55 × 235,163.70 - Step 4: Simplify right side
287,651.70x = 101,467,857,124.94 - Step 5: Solve for x
x = 101,467,857,124.94/287,651.70 - Step 6: Final answer
x = 352,745.55
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1.5x scale
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.