Finding the Fourth Proportional to 421,354.88, 581,469.93 and 230,369.84
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Solution
The fourth proportional to 421,354.88, 581,469.93 and 230,369.84 is: 317,910.49
Step by Step Solution
- Step 1: Write the proportion equation
421,354.88 : 581,469.93 = 230,369.84 : x - Step 2: Convert to fraction form
421,354.88/581,469.93 = 230,369.84/x - Step 3: Cross multiply
421,354.88x = 581,469.93 × 230,369.84 - Step 4: Simplify right side
421,354.88x = 133,953,134,738.91 - Step 5: Solve for x
x = 133,953,134,738.91/421,354.88 - Step 6: Final answer
x = 317,910.49
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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.