Finding the Fourth Proportional to 221,916.80, 332,893.52 and 72,153.68
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Solution
The fourth proportional to 221,916.80, 332,893.52 and 72,153.68 is: 108,236.48
Step by Step Solution
- Step 1: Write the proportion equation
221,916.80 : 332,893.52 = 72,153.68 : x - Step 2: Convert to fraction form
221,916.80/332,893.52 = 72,153.68/x - Step 3: Cross multiply
221,916.80x = 332,893.52 × 72,153.68 - Step 4: Simplify right side
221,916.80x = 24,019,492,516.15 - Step 5: Solve for x
x = 24,019,492,516.15/221,916.80 - Step 6: Final answer
x = 108,236.48
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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.