Finding the Fourth Proportional to 226,928.21, 313,158.36 and 124,951.55
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Solution
The fourth proportional to 226,928.21, 313,158.36 and 124,951.55 is: 172,431.72
Step by Step Solution
- Step 1: Write the proportion equation
226,928.21 : 313,158.36 = 124,951.55 : x - Step 2: Convert to fraction form
226,928.21/313,158.36 = 124,951.55/x - Step 3: Cross multiply
226,928.21x = 313,158.36 × 124,951.55 - Step 4: Simplify right side
226,928.21x = 39,129,622,477.46 - Step 5: Solve for x
x = 39,129,622,477.46/226,928.21 - Step 6: Final answer
x = 172,431.72
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1.5x scale
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.