Finding the Fourth Proportional to 225,043.71, 310,589.69 and 129,554.43
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Solution
The fourth proportional to 225,043.71, 310,589.69 and 129,554.43 is: 178,802.02
Step by Step Solution
- Step 1: Write the proportion equation
225,043.71 : 310,589.69 = 129,554.43 : x - Step 2: Convert to fraction form
225,043.71/310,589.69 = 129,554.43/x - Step 3: Cross multiply
225,043.71x = 310,589.69 × 129,554.43 - Step 4: Simplify right side
225,043.71x = 40,238,269,168.09 - Step 5: Solve for x
x = 40,238,269,168.09/225,043.71 - Step 6: Final answer
x = 178,802.02
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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.