Finding the Fourth Proportional to 421,311.97, 581,368.73 and 240,013.09
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Solution
The fourth proportional to 421,311.97, 581,368.73 and 240,013.09 is: 331,194.26
Step by Step Solution
- Step 1: Write the proportion equation
421,311.97 : 581,368.73 = 240,013.09 : x - Step 2: Convert to fraction form
421,311.97/581,368.73 = 240,013.09/x - Step 3: Cross multiply
421,311.97x = 581,368.73 × 240,013.09 - Step 4: Simplify right side
421,311.97x = 139,536,105,316.68 - Step 5: Solve for x
x = 139,536,105,316.68/421,311.97 - Step 6: Final answer
x = 331,194.26
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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.