Finding the Fourth Proportional to 191,438.75, 287,136.36 and 51,208.31
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Solution
The fourth proportional to 191,438.75, 287,136.36 and 51,208.31 is: 76,806.65
Step by Step Solution
- Step 1: Write the proportion equation
191,438.75 : 287,136.36 = 51,208.31 : x - Step 2: Convert to fraction form
191,438.75/287,136.36 = 51,208.31/x - Step 3: Cross multiply
191,438.75x = 287,136.36 × 51,208.31 - Step 4: Simplify right side
191,438.75x = 14,703,768,452.99 - Step 5: Solve for x
x = 14,703,768,452.99/191,438.75 - Step 6: Final answer
x = 76,806.65
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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.