Finding the Fourth Proportional to 261,405.10, 392,107.65 and 202,283.20
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Solution
The fourth proportional to 261,405.10, 392,107.65 and 202,283.20 is: 303,424.80
Step by Step Solution
- Step 1: Write the proportion equation
261,405.10 : 392,107.65 = 202,283.20 : x - Step 2: Convert to fraction form
261,405.10/392,107.65 = 202,283.20/x - Step 3: Cross multiply
261,405.10x = 392,107.65 × 202,283.20 - Step 4: Simplify right side
261,405.10x = 79,316,790,186.48 - Step 5: Solve for x
x = 79,316,790,186.48/261,405.10 - Step 6: Final answer
x = 303,424.80
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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.