Finding the Fourth Proportional to 394,134.12, 543,905.08 and 212,846.06
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Solution
The fourth proportional to 394,134.12, 543,905.08 and 212,846.06 is: 293,727.56
Step by Step Solution
- Step 1: Write the proportion equation
394,134.12 : 543,905.08 = 212,846.06 : x - Step 2: Convert to fraction form
394,134.12/543,905.08 = 212,846.06/x - Step 3: Cross multiply
394,134.12x = 543,905.08 × 212,846.06 - Step 4: Simplify right side
394,134.12x = 115,768,054,119.63 - Step 5: Solve for x
x = 115,768,054,119.63/394,134.12 - Step 6: Final answer
x = 293,727.56
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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.