Finding the Fourth Proportional to 267,890.67, 401,855.43 and 80,916.75
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Solution
The fourth proportional to 267,890.67, 401,855.43 and 80,916.75 is: 121,380.99
Step by Step Solution
- Step 1: Write the proportion equation
267,890.67 : 401,855.43 = 80,916.75 : x - Step 2: Convert to fraction form
267,890.67/401,855.43 = 80,916.75/x - Step 3: Cross multiply
267,890.67x = 401,855.43 × 80,916.75 - Step 4: Simplify right side
267,890.67x = 32,516,835,365.45 - Step 5: Solve for x
x = 32,516,835,365.45/267,890.67 - Step 6: Final answer
x = 121,380.99
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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.