Finding the Fourth Proportional to 258,894.08, 388,516.80 and 101,121.92
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Solution
The fourth proportional to 258,894.08, 388,516.80 and 101,121.92 is: 151,751.50
Step by Step Solution
- Step 1: Write the proportion equation
258,894.08 : 388,516.80 = 101,121.92 : x - Step 2: Convert to fraction form
258,894.08/388,516.80 = 101,121.92/x - Step 3: Cross multiply
258,894.08x = 388,516.80 × 101,121.92 - Step 4: Simplify right side
258,894.08x = 39,287,564,768.26 - Step 5: Solve for x
x = 39,287,564,768.26/258,894.08 - Step 6: Final answer
x = 151,751.50
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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.