Finding the Fourth Proportional to 275,847.08, 380,669.22 and 156,615.08
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Solution
The fourth proportional to 275,847.08, 380,669.22 and 156,615.08 is: 216,128.95
Step by Step Solution
- Step 1: Write the proportion equation
275,847.08 : 380,669.22 = 156,615.08 : x - Step 2: Convert to fraction form
275,847.08/380,669.22 = 156,615.08/x - Step 3: Cross multiply
275,847.08x = 380,669.22 × 156,615.08 - Step 4: Simplify right side
275,847.08x = 59,618,540,343.84 - Step 5: Solve for x
x = 59,618,540,343.84/275,847.08 - Step 6: Final answer
x = 216,128.95
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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.