Finding the Fourth Proportional to 383,914.72, 529,516.74 and 281,908.18
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Solution
The fourth proportional to 383,914.72, 529,516.74 and 281,908.18 is: 388,823.59
Step by Step Solution
- Step 1: Write the proportion equation
383,914.72 : 529,516.74 = 281,908.18 : x - Step 2: Convert to fraction form
383,914.72/529,516.74 = 281,908.18/x - Step 3: Cross multiply
383,914.72x = 529,516.74 × 281,908.18 - Step 4: Simplify right side
383,914.72x = 149,275,100,452.93 - Step 5: Solve for x
x = 149,275,100,452.93/383,914.72 - Step 6: Final answer
x = 388,823.59
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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.