Finding the Fourth Proportional to 166,834.26, 230,335.86 and 128,521.68
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Solution
The fourth proportional to 166,834.26, 230,335.86 and 128,521.68 is: 177,440.48
Step by Step Solution
- Step 1: Write the proportion equation
166,834.26 : 230,335.86 = 128,521.68 : x - Step 2: Convert to fraction form
166,834.26/230,335.86 = 128,521.68/x - Step 3: Cross multiply
166,834.26x = 230,335.86 × 128,521.68 - Step 4: Simplify right side
166,834.26x = 29,603,151,691.44 - Step 5: Solve for x
x = 29,603,151,691.44/166,834.26 - Step 6: Final answer
x = 177,440.48
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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.