Finding the Fourth Proportional to 394,274.79, 544,099.68 and 212,986.72
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Solution
The fourth proportional to 394,274.79, 544,099.68 and 212,986.72 is: 293,921.92
Step by Step Solution
- Step 1: Write the proportion equation
394,274.79 : 544,099.68 = 212,986.72 : x - Step 2: Convert to fraction form
394,274.79/544,099.68 = 212,986.72/x - Step 3: Cross multiply
394,274.79x = 544,099.68 × 212,986.72 - Step 4: Simplify right side
394,274.79x = 115,886,003,815.81 - Step 5: Solve for x
x = 115,886,003,815.81/394,274.79 - Step 6: Final answer
x = 293,921.92
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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.