Finding the Fourth Proportional to 287,450.80, 431,176.20 and 282,785.20
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Solution
The fourth proportional to 287,450.80, 431,176.20 and 282,785.20 is: 424,177.80
Step by Step Solution
- Step 1: Write the proportion equation
287,450.80 : 431,176.20 = 282,785.20 : x - Step 2: Convert to fraction form
287,450.80/431,176.20 = 282,785.20/x - Step 3: Cross multiply
287,450.80x = 431,176.20 × 282,785.20 - Step 4: Simplify right side
287,450.80x = 121,930,247,952.24 - Step 5: Solve for x
x = 121,930,247,952.24/287,450.80 - Step 6: Final answer
x = 424,177.80
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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.