Finding the Fourth Proportional to 338,958.24, 508,135.23 and 128,743.80
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Solution
The fourth proportional to 338,958.24, 508,135.23 and 128,743.80 is: 193,000.94
Step by Step Solution
- Step 1: Write the proportion equation
338,958.24 : 508,135.23 = 128,743.80 : x - Step 2: Convert to fraction form
338,958.24/508,135.23 = 128,743.80/x - Step 3: Cross multiply
338,958.24x = 508,135.23 × 128,743.80 - Step 4: Simplify right side
338,958.24x = 65,419,260,424.07 - Step 5: Solve for x
x = 65,419,260,424.07/338,958.24 - Step 6: Final answer
x = 193,000.94
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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.