Finding the Fourth Proportional to 285,858.36, 394,475.40 and 156,794.99
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Solution
The fourth proportional to 285,858.36, 394,475.40 and 156,794.99 is: 216,372.07
Step by Step Solution
- Step 1: Write the proportion equation
285,858.36 : 394,475.40 = 156,794.99 : x - Step 2: Convert to fraction form
285,858.36/394,475.40 = 156,794.99/x - Step 3: Cross multiply
285,858.36x = 394,475.40 × 156,794.99 - Step 4: Simplify right side
285,858.36x = 61,851,764,425.87 - Step 5: Solve for x
x = 61,851,764,425.87/285,858.36 - Step 6: Final answer
x = 216,372.07
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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.