Finding the Fourth Proportional to 157,858.40, 236,776.80 and 51,240.80
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Solution
The fourth proportional to 157,858.40, 236,776.80 and 51,240.80 is: 76,857.69
Step by Step Solution
- Step 1: Write the proportion equation
157,858.40 : 236,776.80 = 51,240.80 : x - Step 2: Convert to fraction form
157,858.40/236,776.80 = 51,240.80/x - Step 3: Cross multiply
157,858.40x = 236,776.80 × 51,240.80 - Step 4: Simplify right side
157,858.40x = 12,132,632,653.44 - Step 5: Solve for x
x = 12,132,632,653.44/157,858.40 - Step 6: Final answer
x = 76,857.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.