Finding the Fourth Proportional to 427,192.93, 640,886.73 and 227,408.05
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Solution
The fourth proportional to 427,192.93, 640,886.73 and 227,408.05 is: 341,163.89
Step by Step Solution
- Step 1: Write the proportion equation
427,192.93 : 640,886.73 = 227,408.05 : x - Step 2: Convert to fraction form
427,192.93/640,886.73 = 227,408.05/x - Step 3: Cross multiply
427,192.93x = 640,886.73 × 227,408.05 - Step 4: Simplify right side
427,192.93x = 145,742,801,540.18 - Step 5: Solve for x
x = 145,742,801,540.18/427,192.93 - Step 6: Final answer
x = 341,163.89
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1.5x scale
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.