Finding the Fourth Proportional to 271,923.96, 407,808.18 and 138,721.08
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Solution
The fourth proportional to 271,923.96, 407,808.18 and 138,721.08 is: 208,041.95
Step by Step Solution
- Step 1: Write the proportion equation
271,923.96 : 407,808.18 = 138,721.08 : x - Step 2: Convert to fraction form
271,923.96/407,808.18 = 138,721.08/x - Step 3: Cross multiply
271,923.96x = 407,808.18 × 138,721.08 - Step 4: Simplify right side
271,923.96x = 56,571,591,162.43 - Step 5: Solve for x
x = 56,571,591,162.43/271,923.96 - Step 6: Final answer
x = 208,041.95
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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.