Finding the Fourth Proportional to 339,152.91, 508,801.36 and 128,786.19
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Solution
The fourth proportional to 339,152.91, 508,801.36 and 128,786.19 is: 193,206.62
Step by Step Solution
- Step 1: Write the proportion equation
339,152.91 : 508,801.36 = 128,786.19 : x - Step 2: Convert to fraction form
339,152.91/508,801.36 = 128,786.19/x - Step 3: Cross multiply
339,152.91x = 508,801.36 × 128,786.19 - Step 4: Simplify right side
339,152.91x = 65,526,585,755.25 - Step 5: Solve for x
x = 65,526,585,755.25/339,152.91 - Step 6: Final answer
x = 193,206.62
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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.