Finding the Fourth Proportional to 421,175.70, 581,222.49 and 230,189.09
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Solution
The fourth proportional to 421,175.70, 581,222.49 and 230,189.09 is: 317,660.96
Step by Step Solution
- Step 1: Write the proportion equation
421,175.70 : 581,222.49 = 230,189.09 : x - Step 2: Convert to fraction form
421,175.70/581,222.49 = 230,189.09/x - Step 3: Cross multiply
421,175.70x = 581,222.49 × 230,189.09 - Step 4: Simplify right side
421,175.70x = 133,791,076,060.63 - Step 5: Solve for x
x = 133,791,076,060.63/421,175.70 - Step 6: Final answer
x = 317,660.96
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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.