Finding the Fourth Proportional to 215,880.10, 323,817.99 and 121,110.10
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Solution
The fourth proportional to 215,880.10, 323,817.99 and 121,110.10 is: 181,663.94
Step by Step Solution
- Step 1: Write the proportion equation
215,880.10 : 323,817.99 = 121,110.10 : x - Step 2: Convert to fraction form
215,880.10/323,817.99 = 121,110.10/x - Step 3: Cross multiply
215,880.10x = 323,817.99 × 121,110.10 - Step 4: Simplify right side
215,880.10x = 39,217,629,150.70 - Step 5: Solve for x
x = 39,217,629,150.70/215,880.10 - Step 6: Final answer
x = 181,663.94
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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.