Finding the Fourth Proportional to 239,278.05, 330,218.20 and 131,847.95
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Solution
The fourth proportional to 239,278.05, 330,218.20 and 131,847.95 is: 181,958.15
Step by Step Solution
- Step 1: Write the proportion equation
239,278.05 : 330,218.20 = 131,847.95 : x - Step 2: Convert to fraction form
239,278.05/330,218.20 = 131,847.95/x - Step 3: Cross multiply
239,278.05x = 330,218.20 × 131,847.95 - Step 4: Simplify right side
239,278.05x = 43,538,591,071.60 - Step 5: Solve for x
x = 43,538,591,071.60/239,278.05 - Step 6: Final answer
x = 181,958.15
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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.