Finding the Fourth Proportional to 288,042.12, 397,387.26 and 180,424.80
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Solution
The fourth proportional to 288,042.12, 397,387.26 and 180,424.80 is: 248,916.78
Step by Step Solution
- Step 1: Write the proportion equation
288,042.12 : 397,387.26 = 180,424.80 : x - Step 2: Convert to fraction form
288,042.12/397,387.26 = 180,424.80/x - Step 3: Cross multiply
288,042.12x = 397,387.26 × 180,424.80 - Step 4: Simplify right side
288,042.12x = 71,698,516,908.05 - Step 5: Solve for x
x = 71,698,516,908.05/288,042.12 - Step 6: Final answer
x = 248,916.78
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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.