Finding the Fourth Proportional to 421,194.80, 581,181.62 and 239,910.26
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Solution
The fourth proportional to 421,194.80, 581,181.62 and 239,910.26 is: 331,037.87
Step by Step Solution
- Step 1: Write the proportion equation
421,194.80 : 581,181.62 = 239,910.26 : x - Step 2: Convert to fraction form
421,194.80/581,181.62 = 239,910.26/x - Step 3: Cross multiply
421,194.80x = 581,181.62 × 239,910.26 - Step 4: Simplify right side
421,194.80x = 139,431,429,455.96 - Step 5: Solve for x
x = 139,431,429,455.96/421,194.80 - Step 6: Final answer
x = 331,037.87
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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.