Finding the Fourth Proportional to 392,457.42, 541,436.68 and 226,775.92
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Solution
The fourth proportional to 392,457.42, 541,436.68 and 226,775.92 is: 312,861.45
Step by Step Solution
- Step 1: Write the proportion equation
392,457.42 : 541,436.68 = 226,775.92 : x - Step 2: Convert to fraction form
392,457.42/541,436.68 = 226,775.92/x - Step 3: Cross multiply
392,457.42x = 541,436.68 × 226,775.92 - Step 4: Simplify right side
392,457.42x = 122,784,798,251.82 - Step 5: Solve for x
x = 122,784,798,251.82/392,457.42 - Step 6: Final answer
x = 312,861.45
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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.