Finding the Fourth Proportional to 286,157.74, 394,817.48 and 178,836.79
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Solution
The fourth proportional to 286,157.74, 394,817.48 and 178,836.79 is: 246,744.64
Step by Step Solution
- Step 1: Write the proportion equation
286,157.74 : 394,817.48 = 178,836.79 : x - Step 2: Convert to fraction form
286,157.74/394,817.48 = 178,836.79/x - Step 3: Cross multiply
286,157.74x = 394,817.48 × 178,836.79 - Step 4: Simplify right side
286,157.74x = 70,607,889,864.91 - Step 5: Solve for x
x = 70,607,889,864.91/286,157.74 - Step 6: Final answer
x = 246,744.64
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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.