Finding the Fourth Proportional to 397,640.58, 548,739.72 and 236,492.08
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Solution
The fourth proportional to 397,640.58, 548,739.72 and 236,492.08 is: 326,356.52
Step by Step Solution
- Step 1: Write the proportion equation
397,640.58 : 548,739.72 = 236,492.08 : x - Step 2: Convert to fraction form
397,640.58/548,739.72 = 236,492.08/x - Step 3: Cross multiply
397,640.58x = 548,739.72 × 236,492.08 - Step 4: Simplify right side
397,640.58x = 129,772,597,761.42 - Step 5: Solve for x
x = 129,772,597,761.42/397,640.58 - Step 6: Final answer
x = 326,356.52
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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.