Finding the Fourth Proportional to 421,112.84, 581,194.98 and 268,102.15
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Solution
The fourth proportional to 421,112.84, 581,194.98 and 268,102.15 is: 370,018.70
Step by Step Solution
- Step 1: Write the proportion equation
421,112.84 : 581,194.98 = 268,102.15 : x - Step 2: Convert to fraction form
421,112.84/581,194.98 = 268,102.15/x - Step 3: Cross multiply
421,112.84x = 581,194.98 × 268,102.15 - Step 4: Simplify right side
421,112.84x = 155,819,622,254.22 - Step 5: Solve for x
x = 155,819,622,254.22/421,112.84 - Step 6: Final answer
x = 370,018.70
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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.