Finding the Fourth Proportional to 421,658.75, 581,902.84 and 230,672.15
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Solution
The fourth proportional to 421,658.75, 581,902.84 and 230,672.15 is: 318,335.09
Step by Step Solution
- Step 1: Write the proportion equation
421,658.75 : 581,902.84 = 230,672.15 : x - Step 2: Convert to fraction form
421,658.75/581,902.84 = 230,672.15/x - Step 3: Cross multiply
421,658.75x = 581,902.84 × 230,672.15 - Step 4: Simplify right side
421,658.75x = 134,228,778,754.87 - Step 5: Solve for x
x = 134,228,778,754.87/421,658.75 - Step 6: Final answer
x = 318,335.09
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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.