Finding the Fourth Proportional to 397,725.24, 548,855.12 and 218,877.24
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Solution
The fourth proportional to 397,725.24, 548,855.12 and 218,877.24 is: 302,047.45
Step by Step Solution
- Step 1: Write the proportion equation
397,725.24 : 548,855.12 = 218,877.24 : x - Step 2: Convert to fraction form
397,725.24/548,855.12 = 218,877.24/x - Step 3: Cross multiply
397,725.24x = 548,855.12 × 218,877.24 - Step 4: Simplify right side
397,725.24x = 120,131,893,825.47 - Step 5: Solve for x
x = 120,131,893,825.47/397,725.24 - Step 6: Final answer
x = 302,047.45
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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.