Finding the Fourth Proportional to 225,409.47, 338,114.09 and 56,939.79
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Solution
The fourth proportional to 225,409.47, 338,114.09 and 56,939.79 is: 85,409.65
Step by Step Solution
- Step 1: Write the proportion equation
225,409.47 : 338,114.09 = 56,939.79 : x - Step 2: Convert to fraction form
225,409.47/338,114.09 = 56,939.79/x - Step 3: Cross multiply
225,409.47x = 338,114.09 × 56,939.79 - Step 4: Simplify right side
225,409.47x = 19,252,144,995.94 - Step 5: Solve for x
x = 19,252,144,995.94/225,409.47 - Step 6: Final answer
x = 85,409.65
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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.