Finding the Fourth Proportional to 289,170.26, 399,204.75 and 180,306.87
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Solution
The fourth proportional to 289,170.26, 399,204.75 and 180,306.87 is: 248,916.88
Step by Step Solution
- Step 1: Write the proportion equation
289,170.26 : 399,204.75 = 180,306.87 : x - Step 2: Convert to fraction form
289,170.26/399,204.75 = 180,306.87/x - Step 3: Cross multiply
289,170.26x = 399,204.75 × 180,306.87 - Step 4: Simplify right side
289,170.26x = 71,979,358,961.63 - Step 5: Solve for x
x = 71,979,358,961.63/289,170.26 - Step 6: Final answer
x = 248,916.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.