Finding the Fourth Proportional to 256,699.44, 354,246.21 and 143,521.92
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Solution
The fourth proportional to 256,699.44, 354,246.21 and 143,521.92 is: 198,060.80
Step by Step Solution
- Step 1: Write the proportion equation
256,699.44 : 354,246.21 = 143,521.92 : x - Step 2: Convert to fraction form
256,699.44/354,246.21 = 143,521.92/x - Step 3: Cross multiply
256,699.44x = 354,246.21 × 143,521.92 - Step 4: Simplify right side
256,699.44x = 50,842,096,211.92 - Step 5: Solve for x
x = 50,842,096,211.92/256,699.44 - Step 6: Final answer
x = 198,060.80
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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.