Finding the Fourth Proportional to 421,571.79, 581,754.34 and 240,342.08
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Solution
The fourth proportional to 421,571.79, 581,754.34 and 240,342.08 is: 331,663.67
Step by Step Solution
- Step 1: Write the proportion equation
421,571.79 : 581,754.34 = 240,342.08 : x - Step 2: Convert to fraction form
421,571.79/581,754.34 = 240,342.08/x - Step 3: Cross multiply
421,571.79x = 581,754.34 × 240,342.08 - Step 4: Simplify right side
421,571.79x = 139,820,046,922.92 - Step 5: Solve for x
x = 139,820,046,922.92/421,571.79 - Step 6: Final answer
x = 331,663.67
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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.